当前位置:首页 >> 机械/仪表 >>

en48h公制螺纹和特殊螺纹参数


MAN B&W Diesel A/S ISO-metric threads, introduction
Approved: 670727 1. General The thread profile is in accordance with ISO 68 (73-05), the diameters and pitches chosen are in accordance with ISO 261-1973. ISO means the international organisation for standardization. Nomenclature and symbols are in accordance with ISO standards. Thread design Distinction is made between coarse thread“ and fine thread“. Coarse thread“ is designed by the letter M, followed by the nominal external diameter, e.g. M10. Fine thread“ is designated by M, followed by the norminal external diameter x pitch, e.g. M72 x 6. When the thread designation is not followed by a tolerance indication (tolerance class), the nut thread is to be made with tolerance class 6H and screw thread with 6g. This is in accordance with thread designations of ordinary commerical qualities of nuts and screws. Usually the tolerance class for threads must be 6H for nuts and 6g for screws, in accordance wtih EN48H standards. When other tolerance classes are used, this is specified as follows: Examples: M10-5H M10-4h M10-5H/4h tolerances class 5H for nut thread M10. tolerances class 4h for screw thread M10. tolerances classes 5H for M10 nut thread and 4h for M10 screw thread. Amended: 20000401 Replaced by: Replaces:

EN48H
Page No.: 1. (51)

2. Nominal dimensions The nominal dimensions for threads are specified in the folllowing standard pages: EN48H page 2: EN48H page 3: EN48H page 4: EN48H page 5: Nominal dimensions and diameter of drills for coarse threads M1,6 - M68. Nominal dimensions and diameter of drills for fine threads M72x6 - M300x6. Nominal dimensions and diameter of drills for fine threads M10x1 - M160x4. Nominal dimensions and diameter of drills for fine threads M3,5x0,6 - M140x3.

3. Thread tolerances 3.1 The following standards are used as a basis for preparing MAN B&W Diesel‘s standard sheets: ISO 965/1 (80-09): Principles and basic data. ISO 965/2 (80-09): Limits of sizes for general purpose screw and nut threads. ISO 965/3 (80-10): Deviations for constructional threads. ISO 1502 (78-07): Gauges, for checking ISO metric threads. DIN 13 teil 20 to 26 (83-10): Limits of size.

MAN B&W Diesel A/S ISO-metric threads, introduction
Approved: 670727 3.2 Amended: 20000401 Replaced by: Replaces:

EN48H
Page No.: 1.1 (51)

The ISO thread system provides a serie of tolerance grades for each of the four thread diameters, as follows: Tolerance grades: 4, 4, 4, 4, 5, 5, 5, 6, 6, 6, 6, 7, 7, 7, 8 8 8 8,

Thread diameter: Minor diameter (D1) of nut threads Major diameter (d) of screw threads Pitch diameter (D2) of nut threads Pitch diameter (d2) of screw threads

3,

9

Tolerance grade 6 to be used for tolerance quality Medium and Normal length of thread engagement. The grades below 6 are intented for tolerance quality Fine and/or Short lengths of threads engagement. The grades above 6 are intended for tolerance quality Coarse and/or Long lengths of thread engagement. The lengths of thread engagement is classified: S (short), N (medium/normal), L (long). The tolerance class, for example 6H, is a combination of the tolerance grade chosen and its position in relation to the basic dimension. The position of tolerances with respect to the basic dimensions appear from the figure No.1 below.

H 0 g e f Fig.1 h

G

Nut thread

Screw thread

3.3

Special tolerance pages have been issued for screw threads which are subjected to an elongation when tightening is carried out, e.g. by hydraulic means. Here the nomal tolerance grades have been applied, however, their placing in relation to the basic dimensions has been so calculated that the resultant axial clearance between nut and screw thread is sufficient to compensate for the mentioned elongation within the height of the nut.

MAN B&W Diesel A/S ISO-metric threads, introduction
Approved: 670727 3.4 Amended: 20000401 Replaced by: Replaces:

EN48H
Page No.: 1.2 (51)

Limits to sizes of threads are specified in the following standard pages: Tolerance class 6H/6g for M1,6 - M68. M1,6 - M68 nut threads, with specified root radius, tolerance class 6H. Tolerance class 6H/6g for M72x6 - M300x6. M72x6 - M300x6 nut threads, with specified root radius, tolerance class 6H. Tolerances for M6 - M68, e.g. for hydraulic tensioning (nut H/screw tolerance grade 6). Tolerances for M72x6 - M300x6, e.g. for hydraulic tensioning (nut 6H/screw tolerance grade 6). Tolerance class 6H/6g for M10x1 - M160x4. M10 x 1 - M160x4 nut threads, with specified root radius, tolerance class 6H. Tolerance class 6H/6g for M3,5x0,6 - M140x3. M3,5x0,6 - M140x3 nut threads, with specified root radius, tolerance class 6H.

EN48H pages 10. and 10.2: EN48H page 10.3: EN48H pages 11. and 11.2: EN48H page 11.3: EN48H page 15.1: EN48H page 16.1: EN48H pages 21. and 21.2: EN48H page 21.3: EN48H pages 22. and 22.2: EN48H page 22.3:

4 Miscellaneous The following standard pages specify dimensions for throughgoing holes, clearances, spot facings etc. and lengths of thread engagement as well as dimensioning rules for special tolerances, for use for parts with ISO-metric threads: EN48H page 41. (4 pages): EN48H page 42, (3 pages): EN48H page 43 (3 pages): EN48H page 48: EN48H pages 50. and 50.1: EN48H page 51: Blind holes with M-threads. Undercuts for external M-threads. Clearance holes, spotfacings and nuts with M-threads. Summary for M12 - M120x6, depth of hole for EN43W studs. Length of thread engagement. Dimensioning rules for tolerances, e.g. for hydraulic tensioning.

MAN B&W Diesel A/S ISO-metric coarse threads, nominal measurement
Approved: 661020 Amended: 20000401 Replaced by:
60°
R

EN48H
Page No.: 2 (51)

Replaces:
Nut thread

D1

D2

d d2 d1

Screw thread
Major diam. D=d 1,6 2,0 2,5 3,0 4,0 5,0 6,0 8,0 10,0 12,0 14,0 16,0 18,0 20,0 22,0 24,0 27,0 30,0 33,0 36,0 39,0 42,0 45,0 48,0 52,0 56,0 60,0 64,0 68,0 Pitch diam. D2 = d2 1,373 1,740 2,208 2,675 3,545 4,480 5,350 7,188 9,026 10,863 12,701 14,701 16,376 18,376 20,376 22,051 25,051 27,727 30,727 33,402 36,402 39,077 42,077 44,752 48,752 52,428 56,428 60,103 64,103

P

Thread designation M1,6 M2 M2,5 M3 M4 M5 M6 M8 M10 M12 (M14) M16 (M18) M20 (M22) M24 (M27) M30 (M33) M36 (M39) M42 (M45) M48 (M52) M56 (M60) M64 (M68)

Pitch

P 0,35 0,40 0,45 0,50 0,70 0,80 1,00 1,25 1,50 1,75 2,00 2,00 2,50 2,50 2,50 3,00 3,00 3,50 3,50 4,00 4,00 4,50 4,50 5,00 5,00 5,50 5,50 6,00 6,00

Dimensions in mm Minor diameter Root Root Stress Diameter Nut Screw radius area area of drills Thread thread thread 2 2 D1 d1 R mm mm Tapped Formed 1,221 1,170 0,051 1,08 1,27 1,25 1,45 1,567 1,509 0,058 1,79 2,07 1,6 1,8 2,013 1,948 0,065 2,98 3,39 2,0 2,3 2,459 2,387 0,072 4,47 5,03 2,5 2,8 3,242 3,141 0,101 7,75 8,78 3,3 3,7 4,134 4,019 0,115 12,70 14,20 4,2 4,6 4,917 4,773 0,144 17,90 20,10 5,0 5,5 6,647 6,466 0,180 32,80 36,60 6,8 7,4 8,376 8,160 0,217 52,30 58,00 8,5 9,3 10,106 9,853 0,253 76,20 84,30 10,2 11,2 11,835 11,546 0,289 105 115 12 13 13,835 13,546 0,289 144 157 14 15 15,294 14,933 0,361 175 192 15,5 16,8 17,294 16,933 0,361 225 245 17,5 18,8 19,294 18,933 0,361 281 303 19,5 20,8 20,752 20,319 0,433 324 353 21 22,8 23,752 23,319 0,433 427 459 24 25,5 26,211 25,706 0,505 519 561 26,5 28,25 29,211 28,706 0,505 647 694 29,5 31,25 31,670 31,093 0,577 759 817 32 34 34,670 34,093 0,577 913 976 35 37 37,129 36,479 0,650 1050 1120 37,5 39,75 40,129 39,479 0,650 1220 1300 40,5 42,75 42,587 41,866 0,722 1380 1470 43 45,5 46,587 45,866 0,722 1650 1760 47 49,5 50,046 49,252 0,794 1910 2030 50,5 53,25 54,046 53,252 0,794 2230 2360 55 57,505 56,639 0,866 2520 2680 58 61,505 60,639 0,866 2890 3060 62

This standard is in accordance with ISO standards (see EN48H page 1.) Dimensions in ( ) should be avoided. Stock dim. (normal): Diameter of drills: Tolerances: Root area: Stress area: Designation: From M5 to M48, the framed dimensions. From M1,6 to M56 ISO 2306 (72). According to DS 2062 (91) regarding drills prior to forming internal threads. See EN48H pages 10. and 10.2. , to be used for dynamic loads. , to be used for static loads. M20 a right hand coarse thread with D = 20 mm. M20 left a left hand coarse thread with D = 20 mm

D

MAN B&W Diesel A/S ISO-metric fine threads, nominal measurements
Approved: 661020 Amended: 20000401 Replaced by:
60°
R

EN48H
Page No.: 3 (51)

Replaces:
Nut thread

D1

D2

d d2 d1

Screw thread

P

D

Major Thread Pitch diam. designation P D=d M72x6 6,0 72 M76x6 6,0 76 M80x6 6,0 80 M85x6 6,0 85 M90x6 6,0 90 M95x6 6,0 95 M100x6 6,0 100 M110x6 6,0 110 M120x6 6,0 120 M130x6 6,0 130 M140x6 6,0 140 M150x6 6,0 150 M160x6 6,0 160 M170x6 6,0 170 M180x6 6,0 180 M190x6 6,0 190 M200x6 6,0 200 M210x6 6,0 210 M220x6 6,0 220 M240x6 6,0 240 M250x6 6,0 250 M260x6 6,0 260 M280x6 6,0 280 M300x6 6,0 300

Pitch diam. D2=d2 68,103 72,103 76,103 81,103 86,103 91,103 96,103 106,103 116,103 126,103 136,103 146,103 156,103 166,103 176,103 186,103 196,103 206,103 216,103 236,103 246,103 256,103 276,103 296,103

Minor diameter Nut thread 65,505 69,505 73,505 78,505 83,505 88,505 93,505 103,505 113,505 123,505 133,505 143,505 153,505 163,505 173,505 183,505 193,505 203,505 213,505 233,505 243,505 253,505 273,505 293,505 Screw thread 64,639 68,639 72,639 77,639 82,639 87,639 92,639 102,639 112,639 122,639 132,639 142,639 152,639 162,639 172,639 182,639 192,639 202,639 212,639 232,639 242,639 252,639 272,639 292,639

Root radius R 0,866 0,866 0,866 0,866 0,866 0,866 0,866 0,866 0,866 0,866 0,866 0,866 0,866 0,866 0,866 0,866 0,866 0,866 0,866 0,866 0,866 0,866 0,866 0,866

Root area mm2 3280 3700 4142 4730 5360 6030 6740 8270 9970 11800 13800 16000 18300 20800 23400 26200 29100 32300 35500 42500 46200 50100 58400 67300

Dimensions in mm Stress Diameter area of drills Thread 2 Tapped mm 3460 66 3890 70 4340 74 4950 79 5590 84 6270 89 7000 94 8560 104 10300 114 12100 124 14200 134 16400 144 18700 154 21200 164 23900 174 26700 184 29700 194 32800 204 36100 214 43100 234 46900 244 50800 254 59100 274 68100 294

This standard is in accordance with ISO standards (see EN48H page 1.) Tolerances: Diameter of drills: Root area: Stress area: see EN48H pages 11. and 11.2. D-1xP , to be used for dynamic loads. , to be used for static loads. M90 x 6 a right hand fine thread with D = 90 mm and 6 mm pitch. M90 x 6 left a left hand fine thread with D = 90 mm and 6 mm pitch.

Designation:

MAN B&W Diesel A/S ISO-metric fine threads, (P < 6mm), nominal measurements
Approved: 671106 Amended: 20000401 Replaced by: Replaces:
Nut thread

EN48H
Page No.: 4 (51)

60°
R

D1

D2
Stress area

d d2 d1

Screw thread
Pitch diam. D2=d2 9,350 11,350 13,026 15,026 17,026 19,026 21,026 23,026 25,701 28,701 31,701 34,051 37,051 40,051 43,051 46,051 50,051 53,402 57,402 61,402 65,402 69,402 73,402 77,402 82,402 87,402 92,402 97,402 107,402 117,402 127,402 137,402 147,402 157,402

P
Minor diameter Nut Screw thread thread D1 8,917 10,917 12,376 14,376 16,376 18,376 20,376 22,376 24,835 27,835 30,835 32,752 35,752 38,752 41,752 44,752 48,752 51,670 55,670 59,670 63,670 67,670 71,670 75,670 80,670 85,670 90,670 95,670 105,670 115,670 125,670 135,670 145,670 155,670 d1 8,773 10,773 12,160 14,160 16,160 18,160 20,160 22,160 24,546 27,546 30,546 32,319 35,319 38,319 41,319 44,319 48,319 51,093 55,093 59,093 63,093 67,093 71,093 75,093 80,093 85,093 90,093 95,093 105,093 115,093 125,093 135,093 145,091 155,093 Root radius R 0,144 0,144 0,217 0,217 0,217 0,217 0,217 0,217 0,289 0,289 0,289 0,433 0,433 0,433 0,433 0,433 0,433 0,577 0,577 0,577 0,577 0,577 0,577 0,577 0,577 0,577 0,577 0,577 0,577 0,577 0,577 0,577 0,577 0,577

Dimensions in mm Root area mm2 60,4 91,1 116 157 205 259 319 385 473 596 732 820 979 1153 1340 1542 1833 2049 2383 2741 3125 3534 3968 4427 5036 5684 6372 7099 8670 10398 12284 14326 16526 18882 Diameter of drills Thread

Major Thread Pitch diam. designation P D=d M10x1 1 10 M12x1 1 12 M14x1,5 1,5 14 M16x1,5 1,5 16 M18x1,5 1,5 18 M20x1,5 1,5 20 M22x1,5 1,5 22 M24x1,5 1,5 24 M27x2 2 27 M30x2 2 30 M33x2 2 33 M36x3 3 36 M39x3 3 39 M42x3 3 42 M45x3 3 45 M48x3 3 48 M52x3 3 52 M56x4 4 56 M60x4 4 60 M64x4 4 64 M68x4 4 68 M72x4 4 72 M76x4 4 76 M80x4 4 80 M85x4 4 85 M90x4 4 90 M95x4 4 95 M100x4 4 100 M110x4 4 110 M120x4 4 120 M130x4 4 130 M140x4 4 140 M150x4 4 150 M160x4 4 160

mm2 Tapped Formed 64,5 9 9,5 96,1 11 11,5 124 12,5 13,3 167 14,5 15,3 216 16,5 17,3 271 18,5 19,3 333 20,5 21,3 401 22,5 23,3 496 25 26 621 28 29 760 31 32 864 33 35 1028 36 37,5 1205 39 40,5 1397 42 43,5 1603 45 46,5 1899 49 50,5 2143 52 2484 56 2849 60 3240 64 3656 68 4098 72 4564 76 5182 81 5839 86 6536 91 7272 96 8862 106 10608 116 12512 126 14572 136 16790 146 19165 156

This standard is in accordance with ISO standards (see EN48H page 1.). Field of application: Threads according to this standard should only be used for constructions where threads according to EN48H sheet 2 or 3, are not fully satisfactory. Diameter of drills: From M10 to M48 ISO 2306 (72). According to DS 2062 (91) regarding drills prior to forming inernal threads. Tolerances: See EN48H pages 21. and 21.2. Root area: Stress area: Designation: , to be used for dynamic loads. , to be used for static loads. M68 x 4 a right hand fine thread with D = 68 mm and 4 mm pitch. M68 x 4 left a left hand fine thread with D = 68 mm and 4 mm pitch.

D

MAN B&W Diesel A/S ISO-metric fine threads, (P<6mm), for spec. components nom. measurement
Approved: 671106 Amended: 20000401 Replaced by:
60°
R

EN48H
Replaces:
Nut thread

Page No.: 5 (51)

D1

D2
Stress area
2

d d2 d1

Screw thread
Major Pitch diam. D=d 3,5 4,5 8 14 16 12 25 26 27 30 33 36 36 39 42 45 48 52 56 60 64 68 72 76 80 85 90 95 100 105 110 115 120 125 130 140 Pitch diam.

P
Minor diameter Root Nut Screw radius thread thread D1 d1 R 2,850 2,763 0,087 3,688 3,580 0,108 6,917 6,773 0,144 12,917 12,773 0,144 14,917 14,773 0,144 10,376 10,160 0,217 23,376 23,160 0,217 24,376 24,160 0,217 25,376 25,160 0,217 28,376 28,160 0,217 31,376 31,160 0,217 34,376 34,160 0,217 33,835 33,546 0,289 36,835 36,546 0,289 39,835 39,546 0,289 42,835 42,546 0,289 45,835 45,546 0,289 49,835 49,549 0,289 53,835 53,546 0,289 57,835 57,546 0,289 61,835 61,546 0,289 65,835 65,546 0,289 69,835 69,546 0,289 73,835 73,546 0,289 77,835 77,546 0,289 82,835 82,546 0,289 87,835 87,546 0,289 92,835 92,546 0,289 96,752 96,319 0,433 101,752 101,319 0,433 106,752 106,319 0,433 111,752 111,319 0,433 116,752 116,319 0,433 121,752 121,319 0,433 126,752 126,319 0,433 136,752 136,319 0,433

Dimensions in mm Root area mm 6 10,1 36 128 171 81 421 458 497 622 762 916 883 1048 1228 1421 1628 1927 2251 2600 2974 3373 3797 4246 4721 5349 6016 6723 7283 8058 8873 9728 10621 11554 12526 14588
2

P M3,5x0,6 0,6 M4,4x0,75 0,75 M8x1 1 M14x1 1 M16x1 1 M12x1,5 1,5 M25x1,5 1,5 M26x1,5 1,5 M27x1,5 1,5 M30x1,5 1,5 M33x1,5 1,5 M36x1,5 1,5 M36x2 2 M39x2 2 M42x2 2 M45x2 2 M48x2 2 M52x2 2 M56x2 2 M60x2 2 M64x2 2 M68x2 2 M72x2 2 M76x2 2 M80x2 2 M85x2 2 M90x2 2 M95x2 2 M100x3 3 M105x3 3 M110x3 3 M115x3 3 M120x3 3 M125x3 3 M130x3 3 M140x3 3

Thread designation

D2=d2 3,110 4,013 7,350 13,350 15,350 11,026 24,026 25,026 26,026 29,026 32,026 35,026 34,701 37,701 40,701 43,701 46,701 50,701 54,701 58,701 62,701 66,701 70,701 74,701 78,701 83,701 88,701 93,701 98,051 103,051 108,051 113,051 118,051 123,051 128,051 138,051

mm Tapped Formed 6,8 2,9 3,2 11 3,7 4,2 39,2 7 7,5 134 13 13,5 178 15 15,5 88,1 10,5 11,3 437 23,5 24,3 475 24,5 25,3 514 25,5 26,3 642 28,5 29,3 784 31,5 32,3 939 34,5 35,3 914 34 35 1082 37 38 1264 40 41 1460 43 44 1670 46 47 1972 50 51 2300 54 2652 58 3030 62 3432 66 3860 70 4313 74 4791 78 5424 83 6096 88 6808 93 7414 97 8197 102 9019 107 9880 112 10780 117 11719 122 12698 127 14773 137

This standard is in accordance with ISO standards (see EN48H page 1.). Field of application: Threads acc. to this standard must only be used as connecting threads for purchased components and not as construction threads. Diameter of drills: From M3,5 to M52 ISO 2306 (72). According to DS 2062 (91) regarding drills prior to forming internal threads. Tolerances: See EN48H pages 22. and 22.2. Root area: Stress area: Designation: , to be used for dynamic loads , to be used for static loads. M48 x 2 a right hand fine thread with D=48 mm and 2 mm pitch. M48 x 2 left a left hand fine thread with D=48 mm and 2 mm pitch.

D
Diameter of drills Thread

MAN B&W Diesel A/S ISO-metric coarse threads, tolerances, class 6H
Approved: 661020 Amended: 20000401 Replaced by: Replaces:

EN48H
Page No.: 10. (51)

D1 min. D1 max. D2 min.

D2 max.

60°

Nut thread

Thread Pitch designation P M1,6 0,35 M2 0,40 M2,5 0,45 M3 0,50 M4 0,70 M5 0,80 M6 1,00 M8 1,25 M10 1,50 M12 1,75 M14 2,00 M16 2,00 M18 2,50 M20 2,50 M22 2,50 M24 3,00 M27 3,00 M30 3,50 M33 3,50 M36 4,00 M39 4,00 M42 4,50 M45 4,50 M48 5,00 M52 5,00 M56 5,50 M60 5,50 M64 6,00 M68 6,00

Dimensions in mm Nut Thread Tolerance class 6H Major diam. Pitch diameter Minor diameter D min. D2 max. D2 min. D1 max. D1 min. 1,6 1,458 1,373 1,321 1,221 2 1,830 1,740 1,679 1,567 2,5 2,303 2,208 2,138 2,013 3 2,775 2,675 2,599 2,459 4 3,663 3,545 3,422 3,242 5 4,605 4,480 4,334 4,134 6 5,500 5,350 5,153 4,917 8 7,348 7,188 6,912 6,647 10 9,206 9,026 8,676 8,376 12 11,063 10,863 10,441 10,106 14 12,913 12,701 12,210 11,835 16 14,913 14,701 14,210 13,835 18 16,600 16,376 15,744 15,294 20 18,600 18,376 17,744 17,294 22 20,600 20,376 19,744 19,294 24 22,316 22,051 21,252 20,752 27 25,316 25,051 24,252 23,752 30 28,007 27,727 26,771 26,211 33 31,007 30,727 29,771 29,211 36 33,702 33,402 32,270 31,670 39 36,702 36,402 35,270 34,670 42 39,392 39,077 37,799 37,129 45 42,392 42,077 40,799 40,129 48 45,087 44,752 43,297 42,587 52 49,087 48,752 47,297 46,587 56 52,783 52,428 50,796 50,046 60 56,783 56,428 54,796 54,046 64 60,478 60,103 58,305 57,505 68 64,478 64,103 62,305 61,505

This standard is in accordance with ISO 965/2 and 3 (80-09) (see EN48H page 1.) Inspection gauging: Field of application: Designation (nut): Designation (nut/screw): Gauges in accordance with ISO 1502 (78-07). The stated tolerances are valid for lengths of thread engagement according to EN48H page 50. M10 the tolerance of a M10 - 6H nut thread. M10 - 6H/6g the tolerance of M10 nut and screw threads (see EN48H page 10.2).

D min.

en48h5

MAN B&W Diesel A/S ISO-metric coarse threads, tolerances, class 6g
Approved: 820120 Amended: 20000401 Replaced by:
a=60°
R

EN48H
Page No.: 10.2. (51) EN48H page 10.1: See standards section B.

Replaces: EN48H page 10.1

d2 max.

d2 min.

d min.

d1 min.

d max.

Screw thread

Thread Pitch desigMajor diameter nation P d max. d min. M1,6 0,35 1,581 1,496 M2 0,40 1,981 1,886 M2,5 0,45 2,480 2,380 M3 0,50 2,980 2,874 M4 0,70 3,978 3,838 M5 0,80 4,976 4,826 M6 1,00 5,974 5,794 M8 1,25 7,972 7,760 M10 1,50 9,968 9,732 M12 1,75 11,966 11,701 M14 2,00 13,962 13,682 M16 2,00 15,962 15,682 M18 2,50 17,958 17,623 M20 2,50 19,958 19,623 M22 2,50 21,958 21,623 M24 3,00 23,952 23,577 M27 3,00 26,952 26,577 M30 3,50 29,947 29,522 M33 3,50 32,947 32,522 M36 4,00 35,940 35,465 M39 4,00 38,940 38,465 M42 4,50 41,937 41,437 M45 4,50 44,937 44,437 M48 5,00 47,929 47,399 M52 5,00 51,929 51,399 M56 5,50 55,925 55,365 M60 5,50 59,925 59,365 M64 6,00 63,920 63,320 M68 6,00 67,920 67,320

Dimensions in mm Screw thread Tolerance class 6g Pitch diameter Minor diameter 1) * Root radius d2 max. d2 min. d1 max. d1 min. R min. 1,354 1,291 1,151 1,075 0,044 1,721 1,654 1,490 1,407 0,050 2,188 2,117 1,928 1,840 0,056 2,655 2,580 2,367 2,273 0,063 3,523 3,433 3,119 3,002 0,088 4,456 4,361 3,995 3,869 0,100 5,324 5,212 4,747 4,596 0,125 7,160 7,042 6,438 6,272 0,156 8,994 8,862 8,128 7,938 0,188 10,829 10,679 9,819 9,602 0,219 12,663 12,503 11,508 11,271 0,250 14,663 14,503 13,508 13,271 0,250 16,334 16,164 14,891 14,625 0,313 18,334 18,164 16,891 16,625 0,313 20,334 20,164 18,891 18,625 0,313 22,003 21,803 20,271 19,955 0,375 25,003 24,803 23,271 22,955 0,375 27,674 27,462 25,653 25,306 0,438 30,674 30,462 28,653 28,306 0,438 33,342 33,118 31,033 30,655 0,500 36,342 36,118 34,033 33,655 0,500 39,014 38,778 36,416 36,007 0,563 42,014 41,778 39,416 39,007 0,563 44,681 44,431 41,795 41,352 0,625 48,681 48,431 45,795 45,352 0,625 52,353 52,088 49,177 48,700 0,688 56,353 56,088 53,177 52,700 0,688 60,023 59,743 56,559 56,048 0,750 64,023 63,743 60,559 60,048 0,750

This standard is in accordance with ISO 965/2 and 3 (80-09) and DIN 13 teil 20 (83-10) (see EN48H page 1.) Inspection gauging: Field of application: Gauges in accordance with ISO 1502 (78-07). The stated tolerances are valid for lengths of thread engagement according to EN48H page 50. 1): d1 max. with R=0,144P and d1 min. with Rmin.= 0,125P. *Root contours: The actual root contours shall not in any point transgrees the basic profil + fundamental deviation (see ISO 965/1-1980). Designation (screw): M10 the tolerance of a M10 - 6g screw thread. Designation (nut/screw): M10 - 6H/6g the tolerance of M10 nut and screw threads (see EN48H page 10.).

d1 max.

MAN B&W Diesel A/S ISO-metric coarse threads, tolerances, class 6H
Approved: 820120 Amended: 20000401 Replaced by: Replaces:

EN48H
Page No.: 10.3 (51)

R

D1 min. D1 max. D2 min.

D2 max.

60°

Thread Pitch designation P M1,6 0,35 M2 0,40 M2,5 0,45 M3 0,50 M4 0,70 M5 0,80 M6 1,00 M8 1,25 M10 1,50 M12 1,75 M14 2,00 M16 2,00 M18 2,50 M20 2,50 M22 2,50 M24 3,00 M27 3,00 M30 3,50 M33 3,50 M36 4,00 M39 4,00 M42 4,50 M45 4,50 M48 5,00 M52 5,00 M56 5,50 M60 5,50 M64 6,00 M68 6,00

Dimensions in mm Nut thread with specified root radius Tolerance class 6H Major diam. Pitch diameter Minor diameter * Root radius D max. D2 max. D2 min. D1 max. D1 min. R min. 1,6 1,458 1,373 1,321 1,221 0,038 2 1,830 1,740 1,679 1,567 0,042 2,5 2,303 2,208 2,138 2,013 0,048 3 2,775 2,675 2,599 2,459 0,054 4 3,663 3,545 3,422 3,242 0,060 5 4,605 4,480 4,334 4,134 0,065 6 5,500 5,350 5,153 4,917 0,071 8 7,348 7,188 6,912 6,647 0,076 10 9,206 9,026 8,676 8,376 0,087 12 11,063 10,863 10,441 10,106 0,093 14 12,913 12,701 12,210 11,835 0,104 16 14,913 14,701 14,210 13,835 0,104 18 16,600 16,376 15,744 15,294 0,114 20 18,600 18,376 17,744 17,294 0,114 22 20,600 20,376 19,744 19,294 0,114 24 22,316 22,051 21,252 20,752 0,130 27 25,316 25,051 24,252 23,752 0,130 30 28,007 27,727 26,771 26,211 0,144 33 31,007 30,727 29,771 29,211 0,144 36 33,702 33,402 32,270 31,670 0,163 39 36,702 36,402 35,270 34,670 0,163 42 39,392 39,077 37,799 37,129 0,172 45 42,392 42,077 40,799 40,129 0,172 48 45,087 44,752 43,297 42,587 0,193 52 49,087 48,752 47,297 46,587 0,193 56 52,783 52,428 50,796 50,046 0,204 60 56,783 56,428 54,796 54,046 0,204 64 60,478 60,103 58,305 57,505 0,218 68 64,478 64,103 62,305 61,505 0,218

Nut thread

This standard is in accordance with ISO 965/2 and 3 (80-09) (see EN48H page 1.) with the exception of the specified root radius R min. Inspection gauging: Field of application: *Root radius: Designation: (nut with root radius) Gauges in accordance with ISO 1502 (78-07). The stated tolerances are valid for lengths of thread engagement according to EN48H page 50. Only valid by use of tolerance classs 6g for screw threads. M10 (EN48H page 10.3) the tolerance of a M10 x 1,5 - 6H coarse nut thread according to EN48H page 10.3.

D min.

MAN B&W Diesel A/S ISO-metric fine threads, tolerances, class 6H
Approved: 670517 Amended: 20000401 Replaced by: Replaces:

EN48H
Page No.: 11. (51)

D1 min. D1 max. D2 min.

D2 max.

60°

Nut thread

Dimensions in mm Nut thread Thread Pitch Tolerance class 6H desigMajor diam. Pitch diameter Minor diameter nation P D max. D2 max. D2 min. D1 max. D1 min. M72x6 6 72 68,478 68,103 66,305 65,505 M76x6 6 76 72,478 72,103 70,305 69,505 M80x6 6 80 76,478 76,103 74,305 73,505 M85x6 6 85 81,478 81,103 79,305 78,505 M90x6 6 90 86,478 86,103 84,305 83,505 M95x6 6 95 91,503 91,103 89,305 88,505 M100x6 6 100 96,503 96,103 94,305 93,505 M110x6 6 110 106,503 106,103 104,305 103,505 M120x6 6 120 116,503 116,103 114,305 113,505 M130x6 6 130 126,503 126,103 124,305 123,505 M140x6 6 140 136,503 136,103 134,305 133,505 M150x6 6 150 146,503 146,103 144,305 143,505 M160x6 6 160 156,503 156,103 154,305 153,505 M170x6 6 170 166,503 166,103 164,305 163,505 M180x6 6 180 176,503 176,103 174,305 173,505 M190x6 6 190 186,528 186,103 184,305 183,505 M200x6 6 200 196,528 196,103 194,305 193,505 M210x6 6 210 206,528 206,103 204,305 203,505 M220x6 6 220 216,528 216,103 214,305 213,505 M240x6 6 240 236,528 236,103 234,305 233,505 M250x6 6 250 246,528 246,103 244,305 243,505 M260x6 6 260 256,528 256,103 254,305 253,505 M280x6 6 280 276,528 276,103 274,305 273,505 M300x6 6 300 296,528 296,103 294,305 293,505 This standard is in accordance with ISO 965/3 (80-09) (see EN48H page 1.). Gauges in accordance with ISO 1502 (78-07). The stated tolerances are valid for length of thread engagement according to EN48H page 50. Designation (nut): M90 x 6 the tolerance of a M90 x 6 - 6H nut thread. Designation (nut/screw): M90 x 6 - 6H/6g the tolerance of M90 x 6 nut and screw threads. Inspeciton gauging: Field of application:

D min.

en48h5

MAN B&W Diesel A/S ISO-metric fine threads, tolerances, class 6g
Approved: 820120 Amended: 20000401 Replaced by:
a=60°
R

EN48H
Replaces: EN48H page 11.1 Page No.: 11.2. (51) EN48H page 11.1: See standards section B.

d2 max.

d2 min.

d min.

d1 min.

d max.

Thread designation M72x6 M76x6 M80x6 M85x6 M90x6 M95x6 M100x6 M110x6 M120x6 M130x6 M140x6 M150x6 M160x6 M170x6 M180x6 M190x6 M200x6 M210x6 M220x6 M240x6 M250x6 M260x6 M280x6 M300x6

Pitch P 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 Major diameter d max. d min. 71,920 71,320 75,920 75,320 79,920 79,320 84,920 84,320 89,920 89,320 94,920 94,320 99,920 99,320 109,920 109,320 119,920 119,320 129,920 129,320 139,920 139,320 149,920 149,320 159,920 159,320 169,920 169,320 179,920 179,320 189,920 189,320 199,920 199,320 209,920 209,320 219,920 219,320 239,920 239,320 249,920 249,320 259,920 259,320 279,920 279,320 299,920 299,320

Dimensions in mm Screw thread Tolerance class 6g Pitch diameter Minor diameter 1) * Root radius d2 max. d2 min. d1 max. d1 min. R min. 68,023 67,743 64,559 64,048 72,023 71,743 68,559 68,048 76,023 75,743 72,559 72,048 81,023 80,743 77,559 77,048 86,023 85,743 82,559 82,048 91,023 90,723 87,559 87,028 96,023 95,723 92,559 92,028 106,023 105,723 102,559 102,028 116,023 115,723 112,559 112,028 126,023 125,723 122,559 122,028 136,023 135,723 132,559 132,028 146,023 145,723 142,559 142,028 0,750 156,023 155,723 152,559 152,028 166,023 165,723 162,559 162,028 176,023 175,723 172,559 172,028 186,023 185,708 182,559 182,013 196,023 195,708 192,559 192,013 206,023 205,708 202,559 202,013 216,023 215,708 212,559 212,013 236,023 235,708 232,559 232,013 246,023 245,708 242,559 242,013 256,023 255,708 252,559 252,013 276,023 275,708 272,559 272,013 296,023 295,708 292,559 292,013

Screw thread

This standard is in accordance with ISO 965/3 (80-09) and DIN 13 teil 23 to 26 (83-10), (see EN48H page 1.). Gauges in accordance with ISO 1502 (78-07). The stated tolerances are valid for lengths of thread engagement according to EN48H page 50. 1) d1 max. with R = 0,144P and d1 min. with R min. = 0,125P. *Root contours: The actual root contour shall not in any point transgress the basic profil + fundamental deviation (see ISO 965/1-1980). Designaiton (screw): M90 x 6 the tolerance of a M90 x 6 - 6g screw thread. Designation (nut/screw): M90 x 6 - 6H/6g the tolerance of M90 x 6 nut and screw threads. Inspection gauging: Field of application:

d1 max.

MAN B&W Diesel A/S ISO-metric fine threads, tolerances, class 6H
Approved: 820120 Amended: 20000401 Replaced by: Replaces:

EN48H
Page No.: 11.3 (51)

D1 min. D1 max. D2 min.

D2 max.

R

60°

Nut thread

Thread designation M72x6 M76x6 M80x6 M85x6 M90x6 M95x6 M100x6 M110x6 M120x6 M130x6 M140x6 M150x6 M160x6 M170x6 M180x6 M190x6 M200x6 M210x6 M220x6 M240x6 M250x6 M260x6 M280x6 M300x6

Dimensions in mm Nut thread with specified root radius Pitch Tolerance class 6H Minor diameter * Root radius Major diameter Pitch diameter P D min. D2 max. D2 min. D1 max. D1 min. R min. 6 72 68,478 68,103 66,305 65,505 6 76 72,478 72,103 70,305 69,505 6 80 76,478 76,103 74,305 73,505 6 85 81,478 81,103 79,305 78,505 6 90 86,478 86,103 84,305 83,505 6 95 91,503 91,103 89,305 88,505 6 100 96,503 96,103 94,305 93,505 6 110 106,503 106,103 104,305 103,505 6 120 116,503 116,103 114,305 113,505 6 130 126,503 126,103 124,305 123,505 6 140 136,503 136,103 134,305 133,505 6 150 146,503 146,103 144,305 143,505 0,218 6 160 156,503 156,103 154,305 153,505 6 170 166,503 166,103 164,305 163,505 6 180 176,503 176,103 174,305 173,505 6 190 186,528 186,103 184,305 183,505 6 200 196,528 196,103 194,305 193,505 6 210 206,528 206,103 204,305 203,505 6 220 216,528 216,103 214,305 213,505 6 240 236,528 236,103 234,305 233,505 6 250 246,528 246,103 244,305 243,505 6 260 256,528 256,103 254,305 253,505 6 280 276,528 276,103 274,305 273,505 6 300 296,528 296,103 294,305 293,505

This standard is in accordance with ISO 965/3 (80-09) (see EN48H page 1.) with the exception of the specified root radius R min. Inspection gauging: Field of application: *Root radius: Designation: (nut with root radius) Gauges in accordance with ISO 1502 (78-07). The stated tolerances are valid for length of thread engagement according to EN48H page 50. Only valid by use of tolerance class 6g for screw threads. M90 x 6 (EN48H page 11.3) the tolerance of a M90 x 6 - 6H fine nut thread according to EN48H page 11.3.

D min.

MAN B&W Diesel A/S Special tolerances for coarse threads e.g. for hydr.tensioning
Approved: 820120 Amended: 20000401 Replaced by: Replaces: EN48H page 15.

EN48H
Page No.: 15.1 (51) EN48H page 15.: See standards section B.

Nut thread
P 2

d min. dmax.

D min.

Dl + clearance 6H/6g

d2 min. d2 max. D2 min. Screw thread D2 max.

D1 max. D1 min. d1 max. d1 min.

Dimensions i mm Thread Pitch designation P M6 1,00 M8 1,25 M10 1,50 M12 1,75 M16 2,00 M20 2,50 M24 3,00 M27 3,00 M30 3,50 M33 3,50 M36 4,00 M39 4,00 M42 4,50 M45 4,50 M48 5,00 M52 5,00 M56 5,50 M60 5,50 M64 6,00 M68 6,00 Screw thread with special tolerances Major diameter Pitch diameter Minor diameter d max. d min. d2 max. d2 min. d1 max. d1 min. 5,959 5,779 5,309 5,197 4,732 4,581 7,952 7,740 7,140 7,022 6,418 6,252 9,943 9,707 8,969 8,837 8,103 7,912 11,936 11,671 10,799 10,649 9,789 9,572 15,922 15,642 14,623 14,463 13,468 13,231 19,908 19,573 18,284 18,114 16,841 16,574 23,893 23,518 21,944 21,744 20,212 19,896 26,885 26,510 24,936 24,736 23,204 22,888 29,873 29,448 27,600 27,388 25,578 25,231 32,865 32,440 30,592 30,380 28,571 28,223 35,851 35,376 33,253 33,029 30,944 30,565 38,844 38,369 36,246 36,022 33,936 33,558 41,833 41,333 38,910 38,674 36,312 35,902 44,826 44,326 41,903 41,667 39,304 38,895 47,810 47,280 44,562 44,312 41,675 41,232 51,800 51,270 48,552 48,302 45,665 45,222 55,786 55,226 52,214 51,949 49,037 48,560 59,777 59,217 56,205 55,940 53,028 52,550 63,762 63,162 59,865 59,585 56,400 55,889 67,752 67,162 63,855 63,575 60,390 59,879

1 min. 0,0085 0,0114 0,0143 0,0171 0,0229 0,0286 0,0343 0,0386 0,0429 0,0471 0,0514 0,0557 0,0600 0,0643 0,0686 0,0743 0,0800 0,0857 0,0914 0,0971

Field of application: - for hydraulic tensioning of screwed joints - to facilitate possible dismounting of joints exposed to heigh working temperatures. l: Is calculated for height of nut 1 = nominal external thread diameter (see EN48H pages 2 and 51). Tolerances: normal coarse screw thread tolerances - d (see EN48H pages 10.2 and 51). Tolerances for nut threads according to EN48H page 10. (6H). Designation: M36 (EN48H page 15.1) a tolerance for a M36 coarse screw thread according to EN48H page 15.1.

MAN B&W Diesel A/S Special tolerances for fine screw threads e.g. for hydr.tensioning
Approved: 820120 Amended: 20000401
Nut thread
P 2

EN48H
Replaces: EN48H page 16. Page No.: 16.1 (51) EN48H page 16.: See standards section B.

Replaced by:

d min. dmax.

D min.

Dl + clearance 6H/6g

d2 min. d2 max. D2 min. Screw thread D2 max.

D1 max. D1 min. d1 max. d1 min.

Dimensions i mm

Thread Screw thread with special tolerances Pitch desigMajor diameter Pitch diameter Minor diameter nation P d max. d min. d2 max. d2 min. d1 max. d1 min. 1 min. M72x6 6 71,742 71,142 67,845 67,565 64,407 63,869 0,1029 M76x6 6 75,732 75,132 71,835 71,555 68,370 67,859 0,1086 M80x6 6 79,722 79,122 75,825 75,545 72,360 71,849 0,1141 M85x6 6 84,713 84,113 80,816 80,536 77,351 76,840 0,1194 M90x6 6 89,705 89,105 85,808 85,528 82,343 81,832 0,1243 M95x6 6 94,695 94,095 90,798 90,498 87,333 86,802 0,1301 M100x6 6 99,685 99,085 95,788 95,488 92,323 91,792 0,1357 M110x6 6 109,661 109,061 105,764 105,464 102,300 101,768 0,1493 M120x6 6 119,643 119,043 115,746 115,446 112,281 111,750 0,1600 M130x6 6 129,625 129,320 125,728 125,428 122,263 121,732 0,1702 M140x6 6 139,608 139,008 135,711 135,411 132,246 131,715 0,1800 M150x6 6 149,608 149,008 145,711 145,411 142,246 141,715 0,1893 M160x6 6 159,574 158,974 155,677 155,377 152,212 151,681 0,2000 M170x6 6 169,556 168,956 165,659 165,359 162,194 161,663 0,2104 M180x6 6 179,541 178,941 175,644 175,344 172,179 171,648 0,2186 M190x6 6 189,528 188,928 185,631 185,316 182,167 181,620 0,2262 M200x6 6 199,516 198,916 195,619 195,304 192,155 191,608 0,2333 M210x6 6 209,504 208,904 205,607 205,292 202,133 201,596 0,2400 M220x6 6 219,494 218,894 215,597 215,282 212,133 211,586 0,2462 M240x6 6 239,465 238,865 235,568 235,253 232,104 231,557 0,2629 M250x6 6 249,456 248,856 245,559 245,244 242,095 241,548 0,2679 M260x6 6 259,448 258,848 255,551 255,236 252,087 251,540 0,2723 M280x6 6 279,435 278,835 275,538 275,223 272,074 271,527 0,2800 M300x6 6 299,425 298,825 295,528 295,213 292,064 291,517 0,2857 Field of application: - for hydraulic tensioning of screwed joints (see EN48H page 1.1) - to facilitate possible dismounting of joints exposed to height working temperatures. l: Is calculated for height of nut 1 = nominal external thread diameter (see EN48H pages 3 and 51). Tolerances: normal fine screw thread tolerances - d (see EN48H pages 11.2 and 51). Tolerances for nut threads according to EN48H page 11. (6H). Designation: M180 x 6 (EN48H page 16.1) a tolerance of a M180 x 6 fine screw thread according to EN48H page 16.1.

MAN B&W Diesel A/S ISO-metric fine threads (P<6mm), tolerances, class 6H
Approved: 671108 Amended: 20000401 Replaced by: Replaces:

EN48H
Page No.: 21. (51)

D1 min. D1 max. D2 min.

D2 max.

60°

Nut thread

Thread designation M10x1 M12x1 M14x1,5 M16x1,5 M18x1,5 M20x1,5 M22x1,5 M24x1,5 M27x2 M30x2 M33x2 M36x3 M39x3 M42x3 M45x3 M48x3 M52x3 M56x4 M60x4 M64x4 M68x4 M72x4 M76x4 M80x4 M85x4 M90x4 M95x4 M100x4 M110x4 M120x4 M130x4 M140x4 M150x4 M160x4

Pitch P 1 1 1,5 1,5 1,5 1,5 1,5 1,5 2 2 2 3 3 3 3 3 3 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4

Dimensions in mm Nut thread Tolerance class 6H Major diam. Pitch diameter Minor diameter D min. D2 max. D2 min. D1 max. D1 min. 10 9,500 9,350 9,153 8,917 12 11,510 11,350 11,153 10,917 14 13,216 13,026 12,676 12,376 16 15,216 15,026 14,676 14,376 18 17,216 17,026 16,676 16,376 20 19,216 19,026 18,676 18,376 22 21,216 21,026 20,676 20,376 24 23,226 23,026 22,676 22,376 27 25,925 25,701 25,210 24,835 30 28,925 28,701 28,210 27,835 33 31,925 31,701 31,210 30,835 36 34,316 34,051 33,252 32,752 39 37,316 37,051 36,252 35,752 42 40,316 40,051 39,252 38,752 45 43,316 43,051 42,252 41,752 48 46,331 46,051 45,252 44,752 52 50,331 50,051 49,252 48,752 56 53,717 53,402 52,270 51,670 60 57,717 57,402 56,270 55,670 64 61,717 61,402 60,270 59,670 68 65,717 65,402 64,270 63,670 72 69,717 69,402 68,270 67,670 76 73,717 73,402 72,270 71,670 80 77,717 77,402 76,270 75,670 85 82,717 82,402 81,270 80,670 90 87,717 87,402 86,270 85,670 95 92,737 92,402 91,270 90,670 100 97,737 97,402 96,270 95,670 110 107,737 107,402 106,270 105,670 120 117,737 117,402 116,270 115,670 130 127,737 127,402 126,270 125,670 140 137,737 137,402 136,270 135,670 150 147,737 147,402 146,270 145,670 160 157,737 157,402 156,270 155,670

This standard is in accordance with ISO 965/2 and 3 (80-09) (see EN48H page 1.). Inspection gauging: Field of application: Gauges in accordance with ISO 1502 (78-07). The stated tolerances are valid for lengths of thread engagement according to EN48H page 50.1. Designation (nut): M24 x 1,5 the tolerance of a M24 x 1,5 - 6H nut thread. Designation (nut/screw): M24 x 1,5 - 6H/6g the tolerance of M24 x 1,5 nut and screw threads.

D min.

en48h5

MAN B&W Diesel A/S ISO-metric fine threads (P<6mm), tolerances, class 6g
Approved: 820120 Amended: 20000401 Replaced by:
a=60°
R

EN48H
Page No.: 21.2 (51)

Replaces: EN48H page 21.1

EN48H page 21.1: See standards section B.
d1 max.

d2 max.

d2 min.

d min.

d1 min.

d max.

Thread designation M10x1 M12x1 M14x1,5 M16x1,5 M18x1,5 M20x1,5 M22x1,5 M24x1,5 M27x2 M30x2 M33x2 M36x3 M39x3 M42x3 M45x3 M48x3 M52x3 M56x4 M60x4 M64x4 M68x4 M72x4 M76x4 M80x4 M85x4 M90x4 M95x4 M100x4 M110x4 M120x4 M130x4 M140x4 M150x4 M160x4

Pitch P 1 1 1,5 1,5 1,5 1,5 1,5 1,5 2 2 2 3 3 3 3 3 3 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 Major diam. d max. d min. 9,974 9,794 11,974 11,794 13,968 13,732 15,968 15,732 17,968 17,732 19,968 19,732 21,968 21,732 23,968 23,732 26,932 26,682 29,962 29,682 32,962 32,682 35,962 35,577 38,952 38,577 41,952 41,577 44,952 44,577 47,952 47,577 51,952 51,577 55,940 55,465 59,940 59,465 63,940 63,465 67,940 67,465 71,940 71,465 75,940 75,465 79,940 79,465 84,940 84,465 89,940 89,465 94,940 94,465 99,940 99,465 109,940 109,465 119,940 119,465 129,940 129,465 139,940 139,465 149,940 149,465 159,940 159,465

Screw thread Dimensions in mm Screw thread Tolerance class 6g Pitch diameter Minor diameter * Root radius d2 max. d2 min. d1 max. d1 min. R min 9,324 9,212 8,747 8,596 0,125 11,324 11,206 10,747 10,590 0,125 12,994 12,854 12,128 11,930 0,188 14,994 14,854 14,128 13,930 0,188 16,994 16,854 16,128 15,930 0,188 18,994 18,854 18,128 17,930 0,188 20,994 20,854 20,128 19,930 0,188 22,994 22,844 22,128 21,920 0,188 25,663 25,493 24,508 24,261 0,250 28,663 28,493 27,508 27,261 0,250 31,663 31,493 30,508 30,261 0,250 34,003 33,803 32,271 31,955 0,375 37,003 36,803 35,271 34,955 0,375 40,003 39,803 38,271 37,955 0,375 43,003 42,803 41,271 40,955 0,375 46,003 45,791 44,271 43,943 0,375 50,003 49,791 48,271 47,943 0,375 53,342 53,106 51,033 50,643 0,500 57,342 57,106 55,033 54,643 0,500 61,342 61,106 59,033 58,643 0,500 65,342 65,106 63,033 62,643 0,500 69,342 69,106 67,033 66,643 0,500 73,342 73,106 71,033 70,643 0,500 77,342 77,106 75,033 74,643 0,500 82,342 82,106 80,033 79,643 0,500 87,342 87,106 85,033 84,643 0,500 92,342 92,092 90,033 89,629 0,500 97,342 97,092 95,033 94,629 0,500 107,342 107,092 105,033 104,629 0,500 117,342 117,092 115,033 114,629 0,500 127,342 127,092 125,033 124,629 0,500 137,342 137,092 135,033 134,629 0,500 147,342 147,092 145,033 144,629 0,500 157,342 157,092 155,033 154,629 0,500

This standard is in accordance with ISO 965/2 and 3 (80-09) (see EN48H page 1.). Inspection gauging: Gauges in accordance with ISO 1502 (78-07). Field of application: The stated tolerances are valid for lengths of thread engagement according to EN48H page 50.1. 1) d1 max. with R = 0,144P and d1 min. with R min. = 0,125P. *Root contours: The actual root contours shall not in any point transgress the basic profil + fundamental deviation (see ISO 965/1-1989). Designation (screw): M24 x 1,5 the tolerance of a M24 x 1,5 - 6g screw thread. Designation (nut/screw): M24 x 1,5 - 6H/6g the tolerance of M24 x 1,5 nut and screw threads.

MAN B&W Diesel A/S ISO-metric fine threads (P<6mm), tolerances, class 6H
Approved: 820120 Amended: 20000401 Replaced by: Replaces:

EN48H
Page No.: 21.3 (51)

D1 min. D1 max. D2 min.

D2 max.

R

60°

Nut thread

D min.

Dimensions in mm

Thread designation M10x1 M12x1 M14x1,5 M16x1,5 M18x1,5 M20x1,5 M22x1,5 M24x1,5 M27x2 M30x2 M33x2 M36x3 M39x3 M42x3 M45x3 M48x3 M52x3 M56x4 M60x4 M64x4 M68x4 M72x4 M76x4 M80x4 M85x4 M90x4 M95x4 M100x4 M110x4 M120x4 M130x4 M140x4 M150x4 M160x4

Pitch Major diameter P 1 1 1,5 1,5 1,5 1,5 1,5 1,5 2 2 2 3 3 3 3 3 3 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 D min. 10 12 14 16 18 20 22 24 27 30 33 36 39 42 45 48 52 56 60 64 68 72 76 80 85 90 95 100 110 120 130 140 150 160

Nut thread Tolerance class 6H Pitch diameter D2 max. 9,500 11,510 13,216 15,216 17,216 19,216 21,216 23,226 25,925 28,925 31,925 34,316 37,316 40,316 43,316 46,331 50,331 53,717 57,717 61,717 65,717 69,717 73,717 77,717 82,717 87,717 92,737 97,737 107,737 117,737 127,737 137,737 147,737 157,737 D2 min. 9,350 11,350 13,026 15,026 17,026 19,026 21,026 23,026 25,701 28,701 31,701 34,051 37,051 40,051 43,051 46,051 50,051 53,402 57,402 61,402 65,402 69,402 73,402 77,402 82,402 87,402 92,402 97,402 107,402 117,402 127,402 137,402 147,402 157,402 Minor diameter D1 max. 9,153 11,153 12,676 14,676 16,676 18,676 20,676 22,676 25,210 28,210 31,210 33,252 36,252 39,252 42,252 45,252 49,252 52,270 56,270 60,270 64,270 68,270 72,270 76,270 81,270 86,270 91,270 96,270 106,270 116,270 126,270 136,270 146,270 156,270 D1 min. 8,917 10,917 12,376 14,376 16,376 18,376 20,376 22,376 24,835 27,835 30,835 32,752 35,752 38,752 41,752 44,752 48,752 51,670 55,670 59,670 63,670 67,670 71,670 75,670 80,670 85,670 90,670 95,670 105,670 115,670 125,670 135,670 145,670 155,670 *Root radius R min. 0,071 0,071 0,087 0,087 0,087 0,087 0,087 0,087 0,104 0,104 0,104 0,131 0,131 0,131 0,131 0,131 0,131 0,163 0,163 0,163 0,163 0,163 0,163 0,163 0,163 0,163 0,163 0,163 0,163 0,163 0,163 0,163 0,163 0,163

This standard is in accordance with ISO 965/2 and 3 (80-09) (see EN48H page 1.) with the exception of the specified root radius R min. Inspection gauging: Gauges in accordance with ISO 1502 (78-07). Field of application: The stated tolerances are valid for lengths of thread engagement according to EN48H page 50.1. *Root radius: Only valid by use of tolerance class 6g for screw threads. Designation: M36 x 3 (EN48H page 21.3) the tolerance of a M36 x 3 - 6H (nut with root radius) fine nut thread according to EN48H page 21.3.

MAN B&W Diesel A/S ISO-metric fine threads (P<6mm), tolerances, class 6H
Approved: 671108 Amended: 20000401 Replaced by: Replaces:

EN48H
Page No.: 22 (51)

D1 min. D1 max. D2 min.

D2 max.

60°

Thread designation M3,5x0,6 M4,5x0,75 M8x1 M14x1 M16x1 M12x1,5 M25x1,5 M26x1,5 M27x1,5 M30x1,5 M33x1,5 M36x1,5 M36x2 M39x2 M42x2 M45x2 M48x2 M52x2 M56x2 M60x2 M64x2 M68x2 M72x2 M76x2 M80x2 M85x2 M90x2 M95x2 M100x3 M105x3 M110x3 M115x3 M120x3 M125x3 M130x3 M140x3

Dimensions in mm Nut thread Pitch Tolerance class 6H Pitch diameter Minor diameter Major diam. D max. D2 max. D2 min. D1 max. D1 min. P 0,6 3,5 3,222 3,110 3,010 2,850 0,75 4,5 4,131 4,013 3,878 3,688 1 8 7,500 7,350 7,153 6,917 1 14 13,510 13,350 13,153 12,917 1 16 15,510 15,350 15,153 14,917 1,5 12 11,216 11,026 10,676 10,376 1,5 25 24,226 24,026 23,676 23,376 1,5 26 25,226 25,026 24,676 24,376 1,5 27 26,226 26,026 25,676 25,376 1,5 30 29,226 29,026 28,676 28,376 1,5 33 32,226 32,026 31,676 31,376 1,5 36 35,226 35,026 34,676 34,376 2 36 34,925 34,701 34,210 33,835 2 39 37,925 37,701 37,210 36,835 2 42 40,925 40,701 40,210 39,835 2 45 43,925 43,701 43,210 42,835 2 48 46,937 46,701 46,210 45,835 2 52 50,937 50,701 50,210 49,835 2 56 54,934 54,701 54,210 53,835 2 60 58,937 58,701 58,210 57,835 2 64 62,937 62,701 62,210 61,835 2 68 66,937 66,701 66,210 65,835 2 72 70,937 70,701 70,210 69,835 2 76 74,937 74,701 74,210 73,835 2 80 78,937 78,701 78,210 77,835 2 85 83,937 83,701 83,210 82,835 2 90 88,937 88,701 88,210 87,835 2 95 93,951 93,701 93,210 92,835 3 100 98,351 98,051 97,252 96,752 3 105 103,351 103,051 102,252 101,752 3 110 108,351 108,051 107,252 106,752 3 115 113,351 113,051 112,252 111,752 3 120 118,351 118,051 117,252 116,752 3 125 123,351 123,051 122,252 121,752 3 130 128,351 128,051 127,252 126,752 3 140 138,351 138,051 137,252 136,752

Nut thread

This standard is in accordance with ISO 965/3 (80-09) (see EN48H page 1.). Inspection gauging: Field of application: Gauges in accordance with ISO 1502(78-07). The stated tolerances are valid for lengths of thread engagement according to EN48H page 50.1. Designation (nut): M30 x 1,5 the tolerance of a M30 x 1,5 - 6H nut thread. Designation (nut/screw): M30 x 1,5 - 6H/6g the tolerance of M30 x 1,5 nut and screw threads.

D min.

en48h5

MAN B&W Diesel A/S ISO-metric fine threads (P<6mm), tolerances, class 6g
Approved: 820120 Amended: 20000401 Replaced by:
a=60°
R

EN48H
Page No.: 22 .2 (51)

Replaces: EN48H page 22.1

EN48H page 2.1: See standards section B.
d1 max.

d2 max.

d2 min.

d min.

d1 min.

d max.

Screw thread

Thread designation M3,5x0,6 M4,5x0,75 M8x1 M14x1 M16x1 M12x1,5 M25x1,5 M26x1,5 M27x1,5 M30x1,5 M33x1,5 M36x1,5 M36x2 M39x2 M42x2 M45x2 M48x2 M52x2 M56x2 M60x2 M64x2 M68x2 M72x2 M76x2 M80x2 M85x2 M90x2 M95x2 M100x3 M105x3 M110x3 M115x3 M120x3 M125x3 M130x3 M140x3

Pitch P 0,6 0,75 1 1 1 1,5 1,5 1,5 1,5 1,5 1,5 1,5 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 3 3 3 3 3 3 3 3 Major diam. d max. d min. 3,479 3,354 4,478 4,338 7,974 7,794 13,974 13,794 15,974 15,794 11,968 11,732 24,968 24,732 25,968 25,732 26,968 26,732 29,968 29,732 32,968 32,732 35,968 35,732 35,962 35,682 38,962 38,682 41,962 41,682 44,962 44,682 47,962 47,682 51,962 51,682 55,962 55,682 59,962 59,682 63,962 63,682 67,962 67,682 71,962 71,682 75,962 75,682 79,962 79,682 84,962 84,682 89,962 89,682 94,962 94,682 99,952 99,577 104,952 104,577 109,952 109,577 114,952 114,577 119,952 119,577 124,952 124,577 129,952 129,577 139,952 139,577

Dimensions in mm Screw thread Tolerance class 6g Minor diameter *Root radius Pitch diameter d2 max. d2 min. d1 max. d1 min. R min. 3,089 3,004 2,743 2,635 0,075 3,991 3,901 3,558 3,439 0,094 7,324 7,212 6,747 6,596 0,125 13,324 13,206 12,747 12,590 0,125 15,324 15,206 14,747 14,590 0,125 10,994 10,854 10,128 9,930 0,188 23,994 23,844 23,128 22,920 0,188 24,994 24,844 24,128 23,920 0,188 25,994 25,844 25,128 24,920 0,188 28,994 28,844 28,128 27,920 0,188 31,994 31,844 31,128 30,920 0,188 34,994 34,844 34,128 33,920 0,188 34,663 34,493 33,508 33,261 0,250 37,663 37,493 36,508 36,261 0,250 40,663 40,493 39,508 39,261 0,250 43,663 43,493 42,508 42,261 0,250 46,663 46,483 45,508 45,251 0,250 50,663 50,483 49,508 49,251 0,250 54,663 54,483 53,508 53,251 0,250 58,663 58,483 57,508 57,251 0,250 62,663 62,483 61,508 61,251 0,250 66,663 66,483 65,508 65,251 0,250 70,663 70,483 69,508 69,251 0,250 74,663 74,483 73,508 73,251 0,250 78,663 78,483 77,508 77,251 0,250 83,663 83,483 82,508 82,251 0,250 88,663 88,483 87,508 87,251 0,250 93,663 93,473 92,508 92,241 0,250 98,003 97,779 92,271 95,931 0,375 103,003 102,779 101,271 100,931 0,375 108,003 107,779 106,271 105,931 0,375 113,003 112,779 111,271 110,931 0,375 118,003 117,779 116,271 115,931 0,375 123,003 122,779 121,271 120,931 0,375 128,003 127,779 126,271 125,931 0,375 138,003 137,779 136,271 135,931 0,375

This standard is in accordance with ISO 965/2 and 3 (80-09) (see en48H page 1.). Inspection gauging: Gauges in accordance with ISO 1502 (78-07). Field of application: The stated tolerances are valid for lengths of thread engagement according to EN48H page 50.1 (see ISO 965/1-1980). 1) d1 max. with R = 0,144P. d1 min. with R min. = 0,125P. *Root contours: The actual root contours shall not in any point transgress the basic profil + fundamental deviation. Designation (screw): M30 x 1,5 the tolerance of a M30 x 1,5 - 6g screw thread. Designaiton (nut/screw): M30 x 1,5 - 6H/6g the tolerance of M30 x 1,5 nut and screw threads.

MAN B&W Diesel A/S ISO-metric fine threads (P<6mm), tolerances, class 6H
Approved: 820120 Amended: 20000401 Replaced by: Replaces:

EN48H
Page No.: 22 .3 (51)

D1 min. D1 max. D2 min.

D2 max.

R

60°

Thread designation M3,5x0,6 M4,5x0,75 M8x1 M14x1 M16x1 M12x1,5 M25x1,5 M26x1,5 M27x1,5 M30x1,5 M33x1,5 M36x1,5 M36x2 M39x2 M42x2 M45x2 M48x2 M52x2 M56x2 M60x2 M64x2 M68x2 M72x2 M76x2 M80x2 M85x2 M90x2 M95x2 M100x3 M105x3 M110x3 M115x3 M120x3 M125x3 M130x3 M140x3

Dimensions in mm Nut thread Pitch Tolerance class 6H Minor diameter *Root radius Major diam. Pitch diameter D2 max. D2 min. D1 max. D1 min. R min. P D min. 0,6 3,5 3,222 3,110 3,010 2,850 0,057 0,75 4,5 4,131 4,013 3,878 3,688 0,060 1 8 7,500 7,350 7,153 6,917 0,071 1 14 13,510 13,350 13,153 12,917 0,071 1 16 15,510 15,350 15,153 14,917 0,071 1,5 12 11,216 11,026 10,676 10,376 0,087 1,5 25 24,226 24,026 23,676 23,376 0,087 1,5 26 25,226 25,026 24,676 24,376 0,087 1,5 27 26,226 26,026 25,676 25,376 0,087 1,5 30 29,226 29,026 28,676 28,376 0,087 1,5 33 32,226 32,026 31,676 31,376 0,087 1,5 36 35,226 35,026 34,676 34,376 0,087 2 36 34,925 34,701 34,210 33,835 0,104 2 39 37,925 37,701 37,210 36,835 0,104 2 42 40,925 40,701 40,210 39,835 0,104 2 45 43,925 43,701 43,210 42,835 0,104 2 48 46,937 46,701 46,210 45,835 0,104 2 52 50,937 50,701 50,210 49,835 0,104 2 56 54,937 54,701 54,210 53,835 0,104 2 60 58,937 58,701 58,210 57,835 0,104 2 64 62,937 62,701 62,210 61,835 0,104 2 68 66,937 66,701 66,210 65,835 0,104 2 72 70,937 70,701 70,210 69,835 0,104 2 76 74,937 74,701 74,210 73,835 0,104 2 80 78,937 78,701 78,210 77,835 0,104 2 85 83,937 83,701 83,210 82,835 0,104 2 90 88,937 88,701 88,210 87,835 0,104 2 95 93,951 93,701 93,210 92,835 0,104 3 100 98,351 98,051 97,252 96,752 0,131 3 105 103,351 103,051 102,252 101,752 0,131 3 110 108,351 108,051 107,252 106,752 0,131 3 115 113,351 113,051 112,252 111,752 0,131 3 120 118,351 118,051 117,252 116,752 0,131 3 125 123,351 123,051 122,252 121,752 0,131 3 130 128,351 128,051 127,252 126,752 0,131 3 140 138,351 138,051 137,252 136,752 0,131

Nut thread

This standard is in accordance with ISO 965/3 (80-09) (see EN48H page 1.) with the exception of the specified root radius R min. Inspection gauging: Gauges in accordance with ISO 1502 (78-07). Field of application: The stated tolerances are valid for lengths of thread engagement according to EN48H page 50.1. *Root radius: Only valid by use of tolerance class 6g for screw threads. Designation (nut): M30 x 1,5 (EN48H page 22.3) the tolerance of a M30 x 1,5 - 6H fine nut thread according to EN48H page 22.3.

D min.

MAN B&W Diesel A/S Blind holes with M-threads
Approved: 910603 Amended: 20000401 Replaced by: Replaces: en48h7 partly EN48H p.40.

EN48H
Page No.: 41. (51)

Thread

Thread

0 120° -10°

D1*

D2

D

30°min. R

6 x pitch**

L2 L1 Fig.1

G1 G2 L1 Fig.2

* **

D1 min. = D, D1 max. = D + 1 for D ≤ 20 D1 max. = 1,05 x D for D > 20 The length of the thread depth L2 has to be determined. The depth of the drilled hole will be the thread depth + 6 x pitch: L1 = L2 + 6 x pitch
en48h01 In the table L1 normal = L2 + 6 x pitch. L1 short is used where it is not possible to use 6 x pitch, for example where the material thickness is insufficient. L2 thread depth is the same, but the hole depth can en48h01 be minimized as in L1 short.

This standard is accordance with DIN 76-1: 1983 regarding sizes ≤ M68, except L1 normal and D1 max. Execution fig. 2: Field of application: Tolerances: DIN 76-1, form C (normal) For general purposes
L1 ~ +0,5 x pitch 0

Threads:

D2 H13 (ISO-tol.) According to the EN48H pages.

INDICATION ON DRAWINGS Measurement: General note: or L1 and L2

980 Threaded blind holes EN48H p. 41. 164 All over, except where otherwise stated. 163 All over.

MAN B&W Diesel A/S Blind holes with M-threads
Approved: 910603 Amended: 20000401 Replaced by: Replaces: partly EN48H p.40.

EN48H
Page No.: 41.1 (51)
1 L1 short 1,3 1,5 1,6 5,3 6,2 7,1 7,5 8,5 10,2 12,2 12,9 14,2 16,1 16,2 18,1 19,2 18,2 20,1 21,8 20,2 22,1 23,8 24,1 27,5 26,1 29,5 28,1 31,5 30,1 35,2 31,1 32,1 33,1 34,8 38,2 36,1 37,8 43 39,1 40,8 46 Dimensions in mm 2 G2 R max. ~ 1,9 0,16 2,2 0,2 1,1 0,2 2,7 0,2 3,3 0,4 3,8 0,4 4 0,4 4,2 0,4 5,2 0,6 5,2 0,6 6,7 0,6 5,2 0,6 7,8 0,8 5,2 0,6 7,8 0,8 9,1 1 5,2 0,6 7,8 0,8 10,3 1 5,2 0,6 7,8 0,8 10,3 1 7,8 0,8 13 1,2 7,8 0,8 13 1,2 7,8 0,8 13 1,2 7,8 0,8 15,2 1,6 7,8 0,8 7,8 0,8 7,8 0,8 10,3 1 15,2 1,6 7,8 0,8 10,3 1 17,7 1,6 7,8 0,8 10,3 1 17,7 1,6

Figure Thread Pitch designation P M1,6 0,35 M2 0,4 M2,5 0,45 M3 0,5 M3,5x0,6 0,6 M4 0,7 M4,5x0,75 0,75 M5 0,8 M6 1 M8x1 1 M8 1,25 M10x1 1 M10 1,5 M12x1 1 M12x1,5 1,5 M12 1,75 M14x1 1 M14x1,5 1,5 (M14) 2 M16x1 1 M16x1,5 1,5 M16 2 M18x1,5 1,5 (M18) 2,5 M20x1,5 1,5 M20 2,5 M22x1,5 1,5 (M22) 2,5 M24x1,5 1,5 M24 3 M25x1,5 1,5 M26x1,5 1,5 M27x1,5 1,5 M27x2 2 (M27) 3 M30x1,5 1,5 M30x2 2 M30 3,5 M33x1,5 1,5 M33x2 2 (M33) 3,5

L1 normal 2,1 2,4 2,7 6,5 7,7 8,9 9,5 10,6 13 15 16,5 17 20,5 19 22,5 24,5 21 24,5 28 23 26,5 30 28,5 35,5 30,5 37,5 32,5 39,5 34,5 45 35,5 36,5 37,5 41 48 40,5 44 54,5 43,5 47 57,5

L2

D2 1,8 2,2 2,7 3,3 3,8 4,3 4,8 5,3 6,5 8,5 8,5 10,5 10,5 12,5 12,5 12,5 14,5 14,5 14,5 16,5 16,5 16,5 18,5 18,5 20,5 20,5 22,5 22,5 24,5 24,5 25,5 26,5 27,5 27,5 27,5 30,5 30,5 30,5 33,5 33,5 33,5

3,5 4,1 4,7 5 5,8 7 9 9 11 11,5 13 13,5 14 15 15,5 16 17 17,5 18 19,5 20,5 21,5 22,5 23,5 24,5 25,5 27 26,5 27,5 28,5 29 30 31,5 32 33,5 34,5 35 36,5

G1 min. 1,4 1,6 1,8 2 2,4 2,8 3 3,2 4 4 5 4 6 4 6 7 4 6 8 4 6 8 6 10 6 10 6 10 6 12 6 6 6 8 12 6 8 14 6 8 14

Dimensions in ( ) should be avoided

MAN B&W Diesel A/S Blind holes with M-threads
Approved: 910603 Amended: 20000401 Replaced by: Replaces: partly EN48H p.40.

EN48H
Page No.: 41.2 (51)
1 L1 short 42,1 43,8 47,2 50,5 46,8 50,2 53,5 49,8 53,2 58 52,8 56,2 61 55,8 59,2 66 59,8 63,2 70 63,8 70,5 75,5 67,8 74,5 79,5 71,8 78,5 85 75,8 82,5 89 79,8 86,5 93 83,8 90,5 97 87,8 94,5 101 92,8 Dimensions in mm 2 G2 R max. ~ 7,8 0,8 10,3 1 15,2 1,6 20 2 10,3 1 15,2 1,6 20 2 10,3 1 15,2 1,6 23 2,5 10,3 1 15,2 1,6 23 2,5 10,3 1 15,2 1,6 26 2,5 10,3 1 15,2 1,6 26 2,5 10,3 1 20 2,0 28 3,2 10,3 1 20 2 28 3,2 10,3 1 20 2 30 3,2 10,3 1 20 2 30 3,2 10,3 1 20 2 30 3,2 10,3 1 20 2 30 3,2 10,3 1 20 2 30 3,2 10,3 1

Figure Thread Pitch designation P M36x1,5 1,5 M36x2 2 M36x3 3 M36 4 M39x2 2 M39x3 3 (M39) 4 M42x2 2 M42x3 3 M42 4,5 M45x2 2 M45x3 3 (M45) 4,5 M48x2 2 M48x3 3 M48 5 M52x2 2 M52x3 3 (M52) 5 M56x2 2 M56x4 4 M56 5,5 M60x2 2 M60x4 4 (M60) 5,5 M64x2 2 M64x4 4 M64 6 M68x2 2 M68x4 4 (M68) 6 M72x2 2 M72x4 4 M72x6 6 M76x2 2 M76x4 4 M76x6 6 M80x2 2 M80x4 4 M80x6 6 M85x2 2

L1 normal 46,5 50 57 64 53 60 67 56 63 73,5 59 66 76,5 62 69 83 66 73 87 70 84 94,5 74 88 98,5 78 92 106 82 96 110 86 100 114 90 104 118 94 108 122 99

L2 37,5 38 39 40 41 42 43 44 45 46,5 47 48 49,5 50 51 53 54 55 57 58 60 61,5 62 64 65,5 66 68 70 70 72 74 74 76 78 78 80 82 82 84 86 87

D2 36,5 36,5 36,5 36,5 39,5 39,5 39,5 42,5 42,5 42,5 45,5 45,5 45,5 48,5 48,5 48,5 52,5 52,5 52,5 56,5 56,5 56,5 60,5 60,5 60,5 64,5 64,5 64,5 68,5 68,5 68,5 72,5 72,5 72,5 76,5 76,5 76,5 80,5 80,5 80,5 85,5

G1 min. 6 8 12 16 8 12 16 8 12 18 8 12 18 8 12 20 8 12 20 8 16 22 8 16 22 8 16 24 8 16 24 8 16 24 8 16 24 8 16 24 8

Dimensions in ( ) should be avoided

MAN B&W Diesel A/S Blind holes with M-threads
Approved: 910603 Amended: 20000401 Replaced by: Replaces: partly EN48H p.40.

EN48H
Page No.: 41.3 (51) Dimensions in mm 2 G2 R max. ~ 20 2 30 3,2 10,3 1 20 2 30 3,2 10,3 1 20 2 30 3,2 15,5 1,6 20 2 30 3,2 15,2 1,6 15,2 1,6 20 2 30 3,2 15,2 1,6 15,2 1,6 20 2 30 3,2 15,2 1,6 15,2 1,6 20 2 30 3,2 15,2 1,6 20 2 30 3,2 20 2 30 3,2 20 2 30 3,2 30 3,2 30 3,2 30 3,2 30 3,2 30 3,2 30 3,2 30 3,2 30 3,2 30 3,2 30 3,2 30 3

Figure Thread Pitch designation P M85x4 4 M85x6 6 M90x2 2 M90x4 4 M90x6 6 M95x2 2 M95x4 4 M95x6 6 M100x3 3 M100x4 4 M100x6 6 M105x3 3 M110x3 3 M110x4 4 M110x6 6 M115x3 3 M120x3 3 M120x4 4 M120x6 6 M125x3 3 M130x3 3 M130x4 4 M130x6 6 M140x3 3 M140x4 4 M140x6 6 M150x4 4 M150x6 6 M160x4 4 M160x6 6 M170x6 6 M180x6 6 M190x6 6 M200x6 6 M210x6 6 M220x6 6 M240x6 6 M250x6 6 M260x6 6 M280x6 6 M300x6 6

L1 normal 113 127 104 118 132 109 123 137 121 128 142 126 131 138 152 136 141 148 162 146 151 158 172 161 168 182

1 L1 short 99,5 106 97,8 104,5 111 102,8 109,5 116 111,2 114,5 121 116,2 121,2 124,5 131 126,2 131,2 134,5 141 136,2 141,2 144,5 151 151,2 154,5 161

L2 89 91 92 94 96 97 99 101 103 104 106 108 113 114 116 118 123 124 126 128 133 134 136 143 144 146

D2 85,5 85,5 90,5 90,5 90,5 95,5 95,5 95,5 100,5 100,5 100,5 105,5 110,5 110,5 110,5 115,5 120,5 120,5 120,5 125,5 130,5 130,5 130,5 140,5 140,5 140,5 150,5 150,5 160,5 160,5 170,5 180,5 190,5 200,5 210,5 220,5 240,5 250,5 260,5 280,5 300,5

G1 min. 16 24 8 16 24 8 16 24 12 16 24 12 12 16 24 12 12 16 24 12 12 16 24 12 16 24 16 24 16 24 24 24 24 24 24 24 24 24 24 24 24

MAN B&W Diesel A/S Undercuts for external M-threads
Approved: 910603 Amended: Replaced by: 20000401 30° min. Thread R

en48h8

EN48H
Replaces: partly EN48H p.40.
R 30° min. Thread

Page No.: 42. (51)

d1

Hx45° G1 G2 Fig.1 G1 G2 Fig.2

d1

Dimensions in mm Root area mm2 1,08 1,79 2,98 4,47 6,00 7,75 10,1 12,7 17,9 36,0 32,8 60,4 52,3 91,1 81,0 76,2 128 116 105 d1 1,0 1,3 1,8 2,2 2,5 2,9 3,3 3,7 4,4 6,4 6,0 8,4 7,7 10,4 9,7 9,4 12,4 11,7 11,0 G1 min. 0,6 0,6 0,7 0,8 0,9 1,1 1,2 1,3 1,6 1,6 2,0 1,6 2,5 1,6 2,5 3,0 1,6 2,5 3,4 1 and 2 G2 max. 1,05 1,20 1,35 1,50 1,80 2,10 2,25 2,40 3,00 3,00 3,75 3,00 4,50 3,00 4,50 5,25 3,00 4,50 6,00 H 0,4 0,4 0,5 0,5 0,6 0,8 0,8 0,8 1,0 1,0 1,2 1,0 1,5 1,0 1,5 2,0 1,0 1,5 2,0 R 0,16 0,2 0,2 0,2 0,4 0,4 0,4 0,4 0,6 0,6 0,6 0,6 0,8 0,6 0,8 1,0 0,6 0,8 1,0

Figure Thread Pitch designation P M1,6 M2 M2,5 M3 M3,5x0,6 M4 M4,5x0,75 M5 M6 M8x1 M8 M10x1 M10 M12x1 M12x1,5 M12 M14x1 M14x1,5 (M14) 0,35 0,40 0,45 0,50 0,60 0,70 0,75 0,80 1,00 1,00 1,25 1,00 1,50 1,00 1,50 1,75 1,00 1,50 2,00

Dimensions in ( ) should be avoided This standard is in accordance with following ISO standards: D1, G1, G2 and R ISO 4755 (83) H ISO 4753 (83) regarding coarse threads. Tolerances: d1 h13 (ISO-tol.). Threads: According to the EN48H pages. INDICATION ON DRAWINGS: All the specified measurements.

MAN B&W Diesel A/S Undercuts for external M-threads
Approved: 910603 Amended: 20000401 Replaced by: Replaces: partly EN48H p.40.
1 and 2 G2 max. 3,0 4,5 6,0 4,5 7,5 4,5 7,5 4,5 7,5 4,5 9,0 4,5 4,5 4,5 6,0 9,0 4,5 6,0 10,5 4,5 6,0 10,5 4,5 6,0 9,0 12,0 6,0 9,0 12,0 6,0 9,0 13,5 6,0 9,0 13,5 6,0 9,0 15,0 6,0 9,0 15,0 6,0 12,0 17,5 6,0 12,0 17,5 6,0 12,0 18,0 6,0 12,0

EN48H
Page No.: 42.1 (51)
Dimensions in mm

Figure Thread Pitch Root designation P area mm2 M16x1 1,0 171 M16x1,5 1,5 157 M16 2,0 144 M18x1,5 1,5 205 (M18) 2,5 175 M20x1,5 1,5 259 M20 2,5 225 M22x1,5 1,5 319 (M22) 2,5 281 M24x1,5 1,5 385 M24 3,0 324 M25x1,5 1,5 421 M26x1,5 1,5 458 M27x1,5 1,5 497 M27x2 2,0 473 (M27) 3,0 427 M30x1,5 1,5 622 M30x2 2,0 596 M30 3,5 519 M33x1,5 1,5 762 M33x2 2,0 732 (M33) 3,5 647 M36x1,5 1,5 916 M36x2 2,0 833 M36x3 3,0 820 M36 4,0 759 M39x2 2,0 1048 M39x3 3,0 979 (M39) 4,0 913 M42x2 2,0 1228 M42x3 3,0 1153 M42 4,5 1050 M45x2 2,0 1421 M45x3 3,0 1340 (M45) 4,5 1220 M48x2 2,0 1628 M48x3 3,0 1542 M48 5,0 1380 M52x2 2,0 1927 M52x3 3,0 1833 (M52) 5,0 1650 M56x2 2,0 2251 M56x4 4,0 2049 M56 5,5 1910 M60x2 2,0 2600 M60x4 4,0 2383 (M60) 5,5 2230 M64x2 2,0 2974 M64x4 4,0 2741 M64 6,0 2520 M68x2 2,0 3373 M68x4 4,0 3125 Dimensions in ( ) should be avoided

d1 14,4 13,7 13,0 15,7 14,4 17,7 16,4 19,7 18,4 21,7 19,6 22,7 23,7 24,7 24,0 22,6 27,7 27,0 25,0 30,7 30,0 28,0 33,7 33,0 31,6 30,3 36,0 34,6 33,3 39,0 37,6 35,6 42,0 40,6 38,6 45,0 43,6 41,0 49,0 47,6 45,0 53,0 50,3 48,3 57,0 54,3 52,3 61,0 58,3 55,7 65,0 62,3

G1 min. 1,6 2,5 3,4 2,5 4,4 2,5 4,4 2,5 4,4 2,5 5,2 2,5 2,5 2,5 3,4 5,2 2,5 3,4 6,2 2,5 3,4 6,2 2,5 3,4 5,2 7,0 3,4 5,2 7,0 3,4 5,2 8,0 3,4 5,2 9,0 3,4 5,2 9,0 3,4 5,2 9,0 3,4 7,0 11,0 3,4 7,0 11,0 3,4 7,0 11,0 3,4 7,0

H 1,0 1,5 2,0 1,5 2,5 1,5 2,5 1,5 2,5 1,5 3,0 1,5 1,5 1,5 2,0 3,0 1,5 2,0 3,5 1,5 2,0 3,5 1,5 2,0 3,0 4,0 2,0 3,0 4,0 2,0 3,0 5,0 2,0 3,0 5,0 2,0 3,0 5,0 2,0 3,0 5,0 2,0 4,0 6,0 2,0 4,0 6,0 2,0 4,0 6,0 2,0 4,0

R 0,6 0,8 1,0 0,8 1,2 0,8 1,2 0,8 1,2 0,8 1,6 0,8 0,8 0,8 1,0 1,6 0,8 1,0 1,6 0,8 1,0 1,6 0,8 1,0 1,6 2,0 1,0 1,6 2,0 1,0 1,6 2,5 1,0 1,6 2,5 1,0 1,6 2,5 1,0 1,6 2,5 1,0 2,0 3,2 1,0 2,0 3,2 1,0 2,0 3,2 1,0 2,0

MAN B&W Diesel A/S Undercuts for external M-threads
Approved: 910603 Amended: 20000401 Replaced by: Replaces: partly EN48H p.40.
1 and 2 G2 max. 18 6 12 18 6 12 18 6 12 18 6 12 18 6 12 18 6 12 18 9 12 18 9 9 12 18 9 9 12 18 9 9 12 18 9 12 18 12 18 12 18 18 18 18 18 18 18 18 18 18 18 18

EN48H
Page No.: 42.2 (51)
Dimensions in mm

Figure Thread Pitch Root 2 designation P area mm (M68) 6,0 2890 M72x2 2,0 3797 M72x4 4,0 3534 M72x6 6,0 3280 M76x2 2,0 4246 M76x4 4,0 3968 M76x6 6,0 3700 M80x2 2,0 4721 M80x4 4,0 4427 M80x6 6,0 4142 M85x2 2,0 5349 M85x4 4,0 5036 M85x6 6,0 4730 M90x2 2,0 6016 M90x4 4,0 5684 M90x6 6,0 5360 M95x2 2,0 6723 M95x4 4,0 6372 M95x6 6,0 6030 M100x3 3,0 7283 M100x4 4,0 7099 M100x6 6,0 6740 M105x6 3,0 8058 M110x3 3,0 8873 M110x4 4,0 8670 M110x6 6,0 8270 M115x3 3,0 9728 M120x3 3,0 10621 M120x4 4,0 10398 M120x6 6,0 9970 M125x3 3,0 11554 M130x3 3,0 12526 M130x4 4,0 12284 M130x6 6,0 11800 M140x3 3,0 14588 M140x4 4,0 14326 M140x6 6,0 13800 M150x4 4,0 16526 M150x6 6,0 16000 M160x4 4,0 18882 M160x6 6,0 18300 M170x6 6,0 20800 M180x6 6,0 23400 M190x6 6,0 26200 M200x6 6,0 29100 M210x6 6,0 32300 M220x6 6,0 35500 M240x6 6,0 42500 M250x6 6,0 46200 M260x6 6,0 50100 M280x6 6,0 58400 M300x6 6,0 67300 Dimensions in ( ) should be avoided

d1 59,7 69,0 66,3 63,7 73,0 70,3 67,7 77,0 74,3 71,7 82,0 79,3 76,7 87,0 84,3 81,7 92,0 89,3 86,7 95,6 94,3 91,7 100,6 105,6 104,3 101,7 110,6 115,6 114,3 111,7 120,6 125,6 124,3 121,7 135,6 134,3 131,7 144,3 141,7 154,3 151,7 161,7 171,7 181,7 191,7 201,7 211,7 231,7 241,7 251,7 271,7 291,7

G1 min. 11,0 3,4 7,0 11,0 3,4 7,0 11,0 3,4 7,0 11,0 3,4 7,0 11,0 3,4 7,0 11,0 3,4 7,0 11,0 5,2 7,0 11,0 5,2 5,2 7,0 11,0 5,2 5,2 7,0 11,0 5,2 5,2 7,0 11,0 5,2 7,0 11,0 7,0 11,0 7,0 11,0 11,0 11,0 11,0 11,0 11,0 11,0 11,0 11,0 11,0 11,0 11,0

H 6 2 4 6 2 4 6 2 4 6 2 4 6 2 4 6 2 4 6 3 4 6 3 3 4 6 3 3 4 6 3 3 4 6 3 4 6 4 6 4 6 6 6 6 6 6 6 6 6 6 6 6

R 3,2 1,0 2,0 3,2 1,0 2,0 3,2 1,0 2,0 3,2 1,0 2,0 3,2 1,0 2,0 3,2 1,0 2,0 3,2 1,6 2,0 3,2 1,6 1,6 2,0 3,2 1,6 1,6 2,0 3,2 1,6 1,6 2,0 3,2 1,6 2,0 3,2 2,0 3,2 2,0 3,2 3,2 3,2 3,2 3,2 3,2 3,2 3,2 3,2 3,2 3,2 3,2

MAN B&W Diesel A/S
Approved: 910603 Amended: 20000401 Replaced by:
D2

en48h9

Clearance holes, spotfaces and nuts with M-threads
Replaces: partly EN48H p.40.

EN48H
Page No.: 43. (51)

D1

Dimensions in mm Figure 1 Thread Pitch D1 D2.1 D2.2 D2.3 designation P M1,6 0,35 1,8 M2 0,4 2,4 6 M2,5 0,45 2,9 8 M3 0,5 3,4 9 13 M3,5x0,6 0,6 3,9 9 M4 0,7 4,5 10 18 M4,5x0,75 0,75 5 M5 0,8 5,5 11 18 M6 1 6,6 13 18 M8x1 1 9 18 22 M8 1,25 9 18 22 M10x1 1 11 22 28 M10 1,5 11 22 28 M12x1 1 M12x1,5 1,5 13,5 26 30 M12 1,75 M14x1 1 M14x1,5 1,5 15,5 30 36 (M14) 2 M16x1 1 M16x1,5 1,5 17,5 33 40 M16 2 Dimensions in ( ) should be avoided
This standard is in accordance with following ISO and DIN standards: D1 (clearance hole) ISO 273 (79), medium series. D2.1 (spotfacing normal) DIN 74 sheet 3 (72-03) regarding D2.1≤ 224 mm. D2.2: D2.3: Nuts: Tolerances: Spotfacing for socket spanners EN506J and EN506L. Spotfacing for slugging spanners EN554L. EN91R-T, EN91N and EN91S regarding threads M3, M4 and M5 D1 H13 (ISO-tol.) D2 H15 (ISO-tol.)

Fig.1

MAN B&W Diesel A/S Clearance holes, spotfaces and nuts with M-threads
Approved: 910603 Amended: 20000401 Replaced by: Replaces: partly EN48H p.40.

EN48H
Page No.: 43.1 (51)

Dimensions in mm Figure 1 Thread Pitch D1 D2.1 D2.2 D2.3 designation P M18x1,5 1,5 20 36 43 53 (M18) 2,5 M20x1,5 1,5 22 40 48 61 M20 2,5 M22x1,5 1,5 24 43 53 61 (M22) 2,5 M24x1,5 1,5 26 48 53 66 M24 3,0 M25x1,5 1,5 28 M26x1,5 1,5 29 M27x1,5 1,5 M27x2 2,0 30 53 61 71 (M27) 3,0 M30x1,5 1,5 M30x2 2,0 33 61 82 82 M30 3,5 M33x1,5 1,5 M33x2 2,0 36 66 89 89 (M33) 3,5 M36x1,5 1,5 M36x2 2,0 39 71 98 98 M36x3 3,0 M36 4,0 M39x2 2,0 M39x3 3,0 42 76 107 107 (M39) 4,0 M42x2 2,0 M42x3 3,0 45 82 112 112 M42 4,5 M45x2 2,0 M45x3 3,0 48 89 118 118 (M45) 4,5 M48x2 2,0 M48x3 3,0 52 98 125 125 M48 5,0 M52x2 2,0 M52x3 3,0 56 107 140 140 (M52) 5,0 M56x2 2,0 M56x4 4,0 62 112 140 140 M56 5,5 M60x2 2,0 M60x4 4,0 66 118 170 170 (M60) 5,5 M64x2 2,0 M64x4 4,0 70 125 170 170 M64 6,0 M68x2 2,0 M68x4 4,0 74 132 170 170 (M68) 6,0 Dimensions in ( ) should be avoided

MAN B&W Diesel A/S Clearance holes, spotfaces and nuts with M-threads
Approved: 910603 Amended: 20000401 Replaced by: Replaces: partly EN48H p.40.

EN48H
Page No.: 43.2 (51)

Dimensions in mm Figure 1 Thread Pitch D1 D2.1 D2.2 D2.3 designation P M72x2 2,0 M72x4 4,0 78 132 190 190 M72x6 6,0 M76x2 2,0 M76x4 4,0 82 140 190 190 M76x6 6,0 M80x2 2,0 M80x4 4,0 86 150 190 190 M80x6 6,0 M85x2 2,0 M85x4 4,0 91 212 212 M85x6 6,0 M90x2 2,0 M90x4 4,0 96 170 224 M90x6 6,0 M95x2 2,0 M95x4 4,0 101 224 M95x6 6,0 M100x3 3,0 M100x4 4,0 107 190 250 M100x6 6,0 M105x3 3,0 112 M110x3 3,0 M110x4 4,0 117 200 250 M110x6 6,0 M115x3 3,0 122 M120x3 3,0 M120x4 4,0 127 224 290 M120x6 6,0 M125x3 3,0 132 M130x3 3,0 M130x4 4,0 137 224 320 M130x6 6,0 M140x3 3,0 M140x4 4,0 147 250 320 M140x6 6,0 M150x4 4,0 158 250 350 M150x6 6,0 M160x4 4,0 168 290 350 M160x6 6,0 M170x6 6,0 178 290 360 M180x6 6,0 188 320 390 M190x6 6,0 198 320 410 M200x6 6,0 208 350 430 M210x6 6,0 218 M220x6 6,0 228 M240x6 6,0 248 M250x6 6,0 258 M260x6 6,0 268 M280x6 6,0 288 M300x6 6,0 308 Dimensions in ( ) should be avoided

MAN B&W Diesel A/S ISO-metric thread, depth of hole for EN43W studs
Approved: 760127 Amended: 20000401 Replaced by: Replaces:
en48h10

EN48H
Page No.: 48 (51)





Conventional drill method

B1

Thread

Insert-drill method

R

Thread ISO-M 12 14 16 18 20 22 24 27 30 33 36 39 42 45 48

B1 28 31 34 39 41 43 48 51 58 61 68 70 77 80 86

B2 30 33 36 41 43 46 51 54 61 65 72 74 82 85 91

R min. **

0,8

Thread ISO-M 52 56 60 64 68 72x6 76x6 80x6 85x6 90x6 95x6 100x6 110x6 120x6

B1 90 99 102 109 115 119 123 127 131 138 143 147 158 167

Field of application: Hole depth:

For EN43W studs (SC-standard). On the drawing, the hole depth B1 is stated, if conventional drill method is used. If insert-drill method is used, alter the hole depth to B2. To be cut with taps with threads EN48H pages 10. and 11. and with chamfer lengths max. 5 x Pitch, for example as DIN 376 (81-06), coarse threads ≤ M52 and delivery conditions as DIN 2197 (81-03) form D (chamfer length 3,5 to 5 x Pitch). Normally 120°, to be chamfered from the major thread diameter. Radius may not exceed a value that permits the stud to reach to bottom of the hole. B ± 1 mm for D ≤ M64 B ± 2 mm for D > M64

Threaded holes:

* α°: **: Tolerances:

B2

Dimensions in mm R min. B2 ** 96 105 108 116 122 126 131 1,2 135 140 147 152 157 169 179

MAN B&W Diesel A/S Lengths of thread engagement
Approved: 670927 Amended: 20000401 Replaced by: Replaces:

EN48H
Page No.: 50 (51)

Length of thread engagement for ISO-metric coarse threads.
Thread designation M1,6 M2 M2,5 M3 M4 M5 M6 M8 M10 M12 M14 M16 M18 M20 M22 M24 M27 M30 M33 M36 M39 M42 M45 M48 M52 M56 M60 M64 M68 Pitch P 0,35 0,4 0,45 0,5 0,7 0,8 1 1,25 1,5 1,75 2 2,5 3 3,5 4 4,5 5 5,5 6 Dimensions in mm Length of thread engagement min. max. 0,8 2,6 1 3 1,3 3,8 1,5 4,5 2 6 2,5 7,5 3 9 4 12 5 15 6 18 8 10 12 15 18 21 24 28 32 24 30 36 45 53 63 71 85 95 Thread designation M72x6 M76x6 M80x6 M85x6 M90x6 M95x6 M100x6 M110x6 M120x6 M130x6 M140x6 M150x6 M160x6 M170x6 M180x6 M190x6 M200x6 M210x6 M220x6 M240x6 M250x6 M260x6 M280x6 M300x6 Pitch P Dimensions in mm Length of thread engagement min. max.

6

32

95

6

36

106

6

40

118

This standard is in accordance with ISO 965/1 (80-09), length of thread engagement group N (Normal). Field of application: ISO-metric coarse thread according to EN48H pages 10., 10.2 and 10.3 and fine thread according to EN48H pages 11., 11.2 and 11.3.

MAN B&W Diesel A/S Lengths of thread engagement
Approved: 820120 Amended: 20000401 Replaced by: Replaces:

EN48H
Page No.: 50.1 (51)
Dimensions in mm Length of thread engagement min. max. 1,7 5 2,2 6,7 3 9 3,8 5,6 11 16

Length of thread engagement for ISO-metric fine threads (p < 6 mm) Dimensions in mm Thread Thread Length of thread Pitch Pitch desigdesigengagement nation nation P min. max. P M10x1 1 3 9 M3,5x0,6 0,6 M12x1 1 3,8 11 M4,5x0,75 0,75 M14x1,5 M8x1 1 M16x1,5 M14x1 5,6 16 M18x1,5 M16x1 1,5 M20x1,5 M12x1,5 M22x1,5 M25x1,5 M24x1,5 6,3 19 M26x1,5 1,5 M27x2 M27x1,5 2 8,5 25 M30x2 M30x1,5 M33x2 M33x1,5 M36x3 M36x1,5 M39x3 M36x2 12 36 M42x3 M39x2 3 M45x3 M42x2 M48x3 M45x2 15 45 M52x3 M48x2 M56x4 M52x2 M60x4 M56x2 M64x4 M60x2 2 M68x4 M64x2 19 56 M72x4 M68x2 M76x4 M72x2 M80x4 M76x2 M85x4 M80x2 4 M90x4 M85x2 M95x4 M90x2 M100x4 M95x2 M110x4 M100x3 M120x4 M105x3 24 71 M130x4 M110x3 M140x4 M115x3 3 M150x4 M120x3 M160x4 M125x3 M130x3 M140x3

6,3

19

8,5

25

9,5

28

12

36

18

53

This standard is in accordance with ISO 965/1 (80-09), length of thread engagement group N (Normal) Field of applications: ISO-metric fine thread (p < 6 mm), according to EN48H pages 21., 21.2, 21.3, 22., 22.2 and 22.3.

MAN B&W Diesel A/S M-threads, dimensioning rules for special tolerances
Approved: 671017 Amended: 20000401 Replaced by:
en48h11 Replaces:

EN48H
Page No.: 51 (51)

sR 300 250 200 150 100 50 0 20

N/mm2

en48h01

D mm 40 60 80 100 120 140 160 180 200 220 240 260 280 300

Calculation of tolerance class for screw threads, where tightening occurs after the bolt has been extended, for instance by hydraulic means. * The above graph is only used for the fixing of tolerances, and shows what maximum tension (static) in the root area shall be used when calculating. D = external thread diameter. The axial elongation of the screw thread within the height of the nut will be: Dl= sR x l (mm) E * σR according to the above graph l = height of nut in mm E = coefficient of elasticity For steel, E is = 210 x 103 N/mm2 The radial displacement of the normal tolerance zone will herafter be:
Dd= Dl a tg 2 = Dl tg 30° = Dl (mm) 0,5774

The standardized tolerance degrees are used and these are placed so that the upper limit is moved d. Tolerances for screw threads designed for hydraulic tensioning, see EN48H pages 15.1 and 16.1. * If tightening conditions deviate from the guidelines given in this standard, the displacement of the tolerance zone is to be evaluated according to the actual σR value.


相关文章:
公制螺纹螺距表
公制螺纹螺距表_机械/仪表_工程科技_专业资料。公制螺纹螺距如果带电粒子进入均匀...48 51 57 60 60 67 67 70 细牙 224 公称尺寸 d 螺距 P 全长 L 刃长...
常用公制螺纹
常用公制螺纹_机械/仪表_工程科技_专业资料。常用公制螺纹 公称 直径 M5 M6 M8...48.054 常用螺纹的基本尺寸 小径 8.736 11.358 14.797 18.321 23.666 ...
公制螺纹标准
公制螺纹标准_机械/仪表_工程科技_专业资料。普通螺纹标准规格表普通螺纹基本尺寸...48 48 52 52 58 58 60 60 64 64 螺距 p 1.5 2.5 2 3 2 3 2 3.5 ...
美制英制公制螺纹孔尺寸表_图文
螺纹大径 6H 内螺纹小径 公制/美制 英制螺纹对照表 公制 美制/英制螺纹对照表 美制 给大家分享一下 外螺纹 -4 -6 -8 -10 -12 -16 -20 z{Ak h02 ...
最新GB公制螺纹标准
普通螺纹基本尺寸(mm) 公称直径 22 22 24 24 27 27 30 30 33 33 36 36 39 39 42 42 45 45 48 48 52 52 58 58 60 60 64 64 螺距 p 1.5 2.5 ...
公制螺纹与英制螺纹
公制螺纹与英制螺纹_机械/仪表_工程科技_专业资料。公制螺纹与英制螺纹对照表切削...螺紋尺寸 NO.1 -64UNC 2 -56 3 -48 4 -40 5 -40 6 -32 鑽頭直徑 ...
标准公制螺纹基本牙型和公式_图文
标准公制螺纹基本牙型和公式_能源/化工_工程科技_专业资料。标准公制螺纹基本牙...标准螺纹基本牙型和公式 公称尺寸 粗牙 UNC #1-64 #2-56 #3-48 #4-40...
螺纹精度等级
4、螺纹主要几何参数为:螺纹大径、牙距、螺纹中径、螺纹上升角度。以上几点都...(二)、公制螺纹,外螺纹有三种螺纹等级:4h、6h 和 6g,内螺纹有三种螺纹等级:...
公制英制螺纹知识
公制英制螺纹知识顶径公差代号 中径公差代号 三、机械螺纹的主要几何参数: 专业...4、弯曲度:要求为 150 -450 5、盐雾试验:一般为 MIN 48h。 6、扭力: 规...
各种螺纹详细参数和钻孔直径对照表_图文
5H、M1.6 以上等級:6H (2)基於 JIS B 0209-1982 標準 螺纹下孔径表公制細...螺纹下孔径表美制粗牙螺纹 螺纹尺寸 NO.1 -64UNC 2 -56 3 -48 4 -40 ...
更多相关标签: