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螺丝分类命名及编码


品名代号对照表
1 A TAPPING SCREWS 2 B HEX TAP BOLTS 3 C HEX CAP SCREWS 4 D DRYWALL SCREWS 5 E TAPPING SCREWS 6 F DRYWALL SCREWS 7 G SELF DRILL SCREWS(TEK SCREW) 8 H SELF DRILLING SCREWS 9 I BOL

TS 10 J DRYWALL SCREWS 11 K SELF TAPPING SCREWS 12 L SELF DRILL SCREWS(TEK SCREW) 13 M MACHINE SCREWS 14 N NUTS 15 O CHIPBOARD SCREWS 16 P HEX MACHINE BOLTS 17 Q CHIBOARD SCREWS 18 R STAINLESS STEEL TAPPING SCREWS 19 S STAINLESS STL SCREWS 20 T TAPPING SCREWS 21 U BIT 22 V WOOD SCREWS 23 W WOOD SCREWS 自攻螺丝(MM) 六角螺栓(全牙) (有华司面)六角螺丝 墙用螺丝(IN+MM) 自攻螺丝 墙用螺丝(IN) 钻尾螺丝(MM) 澳洲钻尾螺丝 螺栓 澳洲墙用螺丝 澳洲攻牙螺丝 钻尾螺丝(IN) 机械螺丝(IN) 螺帽(IN) 塑板螺丝(IN) S/T/S HEX TAP BOLT HEX CAP SCREWS D/W/S S/T/S D/W/S S/D/S SELF DRILLING SCREWS BOLT DRYWALL SCREWS SELF TAPPING SCREWS S/D/S M/S NUT C/S

六角全牙(正常牙)(IN) HEX MACHINE BOLTS 塑板螺丝(MM) 不锈钢自攻钻尾 不锈钢钻尾螺丝 自攻螺丝(IN) 二号十字起子 木螺丝(MM) 木螺丝(IN) C/S S/T/S S/D/S S/M/S NO.2 PHILLIPS BIT W/S W/S S/T/S TO DIN D/W/S S/D/S METAL NEOPRENE WASHER M/S S/T/S M/S SPECIAL SCREWS HEX HEAD SCREWS S/W/S SPECIAL SCREWS D/W/S BRASS WOOD SCREWS

24 X SELF TAPPING SCREWS DIN STANDARD 自攻螺丝(DIN 标准) 25 Y DRYWALL SCREWS 26 Z SELF DRILL SCREWS 27 0 METAL NEOPRENE WASHER 28 1 MACHINE SCREWS 29 3 STAINLESS SHEET METAL SCREWS 30 4 MACHINE SCREWS 31 5 SPECIAL SCRES 32 6 HEX HEAD SCREWS 33 7 STAINLESS WOOD SCREWS 34 8 SPECIAL SCREWS 35 9 DRYWALL SCREWS 36 a BRASS WOOD SCREWS 墙用螺丝(MM) 钻尾螺丝(IN+MM) 铁华司+橡胶华司 机制螺丝(IN+MM) 不锈钢攻牙螺丝(IN) 机制螺丝(MM) 特殊螺丝(通用) 六角头螺丝(MM) 不锈钢木螺丝 特殊螺丝(IN) 高品质墙用螺丝 黄铜木螺丝

头穴形状编码表
1 A 2 B 3 C 4 D 5 E 6 F 7 G 8 H 9 I 10 J 11 K 12 L 13 M 14 N 15 O 16 P 17 Q 18 R 19 S 20 T 21 U 22 V 23 W 24 X 25 Y 26 Z 27 28 8 29 9 #1 PHIL AND SQUARE RECESS #2 PHIL AND SQUARE RECESS PHIL AND SLOT RECESS TORX RECESS #1 SQUARE RECESS #3 SQUARE RECESS #1 PHILLIPS RECESS HEX SOCKET RECESS ONE WAY SLOTTED POZI AND SLOT RECESS #3 PHILLIPS RECESS #1 SQUAR SLOT 1 号十字四角孔 2 号十字四角孔 十字割沟 梅花孔 1 号四角孔 1 号四角孔 1 号十字孔 六角孔 单项割沟 米字割沟 3 号十字孔 1 号四角孔割沟 #1 PHIL/SQ #1 PHIL/SQ PHIL/SLOT TORX #1 SQ #3 SQ #1 PHIL HEX SOCKET ONE WAY SLOT POZI/SLOT #3 PHIL #1 SQ/SLOT SAW SLOT

SAW SLOT (MECHANICAL SLOT) 机械割沟 #2 SQUARE RECESS(UAB) #0 SQUARE RECESS #2 PHILLPS RECESS #2 SQUARE RECESS MFGR MARKS “TY” STRUCK SLOT PHIL AND SQUARE RECESS #2 SQUARE SLOT #3 SQUARE SLOT MFGR MARKS 307A + TY #2 PHILLIPS DIN #2 PHILLIPS JIS POZI RECESS RECESS BE NOT REQUESTED BS 4174 PHILLIPS BS 1210 PHILLIPS

2 号四角孔(UAB)客户 #2 SQ 0 号四角孔 2 号十字孔 2 号四角孔 头记“TY” 直接割沟 十字四角孔 2 号四角孔割沟 3 号四角孔割沟 头记 307A + TY #0 SQ #2 PHIL #2 SQ WITH MFGR MARKS “TY“ STRUCK SLOT PHIL/SQ #2 SQ/SLOT #3 SQ/SLOT WITH MFGRMARKS “TY” AND “307A”

2 号十字孔(DIN 标准) #2 PHIL 2 号十字孔(JIS 标准) #2 PHIL 米字孔 无头穴形状 BS 4174 十字孔 BS 1210 十字孔 BS 4174 PHILL BS 1210 PHILL POZI

头部形状编码表
1 A FLAT HEAD 90°-92° 2 B BINDING HEAD 3 C SPLIT HEAD 4 D BUGLE HEAD 5 E HEX HEAD 6 F FLAT HEAD 80°-82°DEGREE 7 G TUSS HEAD/FLAT TOP 8 H INDENTED HEX WASHER HEAD 9 I WAFER HEAD 10 J FLAT ELEVATOR HEAD 11 K IND HEX FLANGE WASHER HEAD 12 L FLAT TRIM HEAD 13 M PAN FRAMING HEAD 14 N BRITSH STANDARD PAN HEAD 15 O PAN WASHER HEAD 16 P PAN HEAD 17 Q BUTTON HEAD 18 R ROUND HEAD 平头 90°-92° 绷头 莲花头 喇叭头 六角头 平头 80°-82° 大扁平顶头 六角华司头 平头大华司 电梯大平头 六角凸缘华司头 小平头 小蜜蜂头 BS 盘头 盘头华司 盘头 钮扣头 圆头 FLAT HD 92° BINDING HD SPLIT HEAD BUGLE HD HEX HEAD FLAT HD 82° TUSS HD/FLAT TOP IHWH WAFER HD FLAT HD IHWH FLANGE WASHER HD FLAT TRIM HD PAN FRAMING HD PAN HD PAN WASHER HD PAN HD BUTTON HD ROUND HD FLANGE HD TRUSS HD FLAT HD 90° OVAL HD RND WASHER HD IND HEX HD MODIFIED TRUSS HD FILLISTER HD ROUND PAN HEAD PANCAKE FRAMING HEAD FLAT HEAD 100° TORX HEAD FCANGAD BOLT RAISE CHEESE HEAD RAISED CHEESE HEAD

19 S TRUSS HEAD WASHER(FLANGE HD) 大扁头华司(BS) 20 T TRUSS HEAD 21 U FLAT HEAD 87°-90° 22 V OVAL HEAD 23 W ROUND WASHER HEAD 24 X INDENTED 25 Y MODIFIED TRUSS HEAD 26 Z FILLISTER HEAD 27 0 ROUND PAN HEAD 28 1 PANCAKE FRAMING HEAD 29 2 FLAT HEAD 100 ° 30 6 TORX HEAD FCANGE BOLT 31 8 RAISE CHEESE HEAD 32 9 RAISED CHEESE HEAD 33 @ FLAT HD TO IFI STNDARD 大扁头 平头 87°-90° 椭圆头 圆头华司 六角凹头 薄饼头 岗山头 圆盘头 正平埋头 平头 100° 梅花头凸缘 扁圆顶柱头 平顶锥头 平头突出高依 IFI

头下形状代码表
1 A FLAT (OVAL) HD W/NIBS 2 C FLAT (OVAL) HEAD UNDER CUT 3 D 8 NIBS UNDER HEAD 4 E FLAT HD W/5 NIBS 5 F W/WASHER FACE 6 I WITH SHOULDER 7 N HALF MOON NIBS 8 R WITH RIB NECK 9 S LOCKING SERRATIN 平头滚花 平切 平头 8 滚花 平头 5 滚花 有华司面 头下有肩部 半月花齿 颈部滚花 反面花齿 W/NIBS U/C W/8 NIBS W/5 NIBS W/WASHER FACE W/SHOULDER W/HALF MOON NIBS W/RIB NECK W/LOCK SERR W/TORQ SERR U/C U/C W/SERR

10 T TORQUE BREAKING SERRATION(STANDARD SERRATION) 正面花齿 11 U UNDER CUT 12 W UNDER CUT W/SERRATION 13 Z SERRATION PER SAMPLE 14 凹切 凹切花齿

头下花齿依图 SERATION PER SAMPLE 无头下形状

常用螺丝头型、槽型、牙型图

岗山头(B 头)

平头(K 头)

C头

含华司台阶

圆头含华丝(PWM)

六角含华司(HWM)

外六角头

梅花一字槽

圆头(P 头)

梅花一字槽

美国 P 头

O头

盘圆含华司

伞头含华司(TWM)

T头

伞头含华司尖尾(TWA)

圆头含华司一字梅花槽

圆头三角牙(STP)

十字槽

加减槽

一字槽

内三角槽

内六角槽

梅花一字槽

A牙

B牙

M牙

STB 牙

ST 牙

B牙

B 双牙

T牙

MACHINE SCREWS
Description Pan Head Combination Machine Screw Round Head Combination Machine Screw Truss Head Combination Machine Screw Flat Head Phillips Machine Screw Undercut Flat Head Phillips Machine Screw Flat Head 100° Phillips Machine Screw Fillister Head Phillips Machine Screw Oval Head Phillips Machine Screw Pan Head Phillips Machine Screw Round Head Phillips Machine Screw Truss Head Phillips Machine Screw MATERIAL Zinc Plated Steel Zinc Plated Steel Zinc Plated Steel Zinc Plated Steel Zinc Plated Steel Zinc Plated Steel Zinc Plated Steel Zinc Plated Steel Zinc Plated Steel Zinc Plated Steel Zinc Plated Steel SIZES 4-40x1/8 thru 1/4-20x4

6-32x2 thru 1/4-20x4

6-32 thru 1/4-20

2-56x1/8 thru 1/2-13

2-56x1/8 thru 3/8-16

2-56x1/8 thru 1/4-20x1-1/2

2-56x1/8 thru 5/16-18x2

4-40x1/4 thru 1/4-20x3

2-56x1/8 thru 3/8-16x3

2-56x1/4 thru 3/8-16

4-40x3/16 thru 3/8-16x2-1/4

Indented Hex Washer Head Phillips Machine Screw Binding Undercut Slotted Head Machine Screw Flat Head Slotted Machine Screw Undercut Flat Head Slotted Machine Screw Fillister Head Slotted Machine Screw Oval Head Slotted Machine Screw Pan Head Slotted Machine Screw Round Head Slotted Machine Screw Truss Head Slotted Machine Screw Indented Hex Head Slotted Machine Screw Indented Hex Head Unslotted Machine Screw

Zinc Plated Steel Zinc Plated Steel Zinc Plated Steel Zinc Plated Steel Zinc Plated Steel Zinc Plated Steel Zinc Plated Steel Zinc Plated Steel Zinc Plated Steel Zinc Plated Steel Zinc Plated Steel

4-40x1/4 thru 1/4-20x1

2-56x1/8 thru 1/4-20x1-1/4

2-56x1/8 thru 1/2-13x6

2-56x1/8 thru 3/8-16x1/2

2-56x1/8 thru 3/8-16x1-1/4

4-40x1/4 thru 1/4-20x2

2-56x1/8 thru 3/8-16x3

2-56x1/8 thru 1/2-13x6

4-40x1/4 thru 1/2-13

4-40x1/4 thru 3/8-16

4-40x1/4 thru 3/8-16

Indented Hex Washer Slotted Grounding Screw Indented Hex Washer Slotted Grounding Screw Indented Hex Washer Slotted Machine Screw Indented Hex Washer Unslotted Machine Screw Flat Head Torx? Drive Machine Screw Pan Head Torx? Drive Machine Screw Pan Head Phillips Shakeproof? Square Cone? Washer Sems Machine Screw Pan Head Phillips Split Lock Washer Sems Machine Screw

Green Zinc Plated Steel Zinc Plated Steel Zinc Plated Steel Zinc Plated Steel Zinc Plated Steel Zinc Plated Steel Screw is Zinc Plated Steel Baked After Plating Screw is Zinc Plated Steel Baked After Plating Screw is Zinc Plated Steel Baked After Plating Screw is Zinc Plated Steel

10-32x3/8 and 10-32x1/2

4-40x1/4 thru 3/8-16x2-1/2

4-40x1/4 thru 3/8-16x2-1/2

4-40x1/4 thru 3/8-16x2

4-40x1/4 thru 1/4-20x2

2-56x3/16 thru 1/4-20x2

4-40x1/4 thru 10-32x3/4

4-40x1/4 thru 1/4-20

Pan Head Phillips External Sems Machine Screw

4-40x3/16 thru 1/4-20x1-1/4

Pan Head Phillips Internal Sems Machine Screw

23-56x1/8 thru 1/4-20x1

Baked After Plating Screw is Zinc Plated Steel Baked After Plating Screw is Zinc Plated Steel Baked After Plating Black Oxide Plated Steel Black Oxide Plated Steel

Pan Head Slotted External Sems Machine Screw

4-40x3/16 thru 1/4-20x1-1/4

Pan Head Slotted Internal Sems Machine Screw

4-40x1/4 thru 10-32x1

Flat Head Phillips Machine Screw Pan Head Phillips Machine Screw

2-56x1/8 thru 1/4-20x2

2-56x1/8 thru 1/4-20x2

Types of Screw Heads

PAN HEAD: Recommended for new
designs to replace round, truss and binding heads. Provides a low large diameter head, but with characteristically high outer edge along the-outer periphery of the head where driving action is most effective for high tightening 'torques. Slightly different head contour where supplied with recessed head.

FLAT HEAD: Supplied to standard
dimensions with an 80' to 82' angle to be used where finished surfaces require a flush fastening unit. The countersunk portion offers good centering possibilities.

ROUND HEAD: Not recommended for new
design (see pan head). This head was the most universally used design in the past.

OVAL HEAD: Fully specified as "oval
countersunk", this head is identical to the standard flat head. but possesses. in addition, a rounded, neat appearing upper surface for attractiveness of design.

FILLISTER HEAD: The-standard oval
fillister head has a smaller diameter than the round head. but is higher with a correspondingly deeper slot. The smaller diameter head increases the pressure applied on the smaller area and can be assembled close to flanges and raised surfaces. Headed in counter bored dies to Insure concentricity, they may be used successfully in counter bored holes.

BINDING HEAD (Straight Side): Most
generally used in electrical and radio work because of its identifying undercut beneath the head, which binds and eliminates fraying of stranded wire. Offers an attractively designed, medium-low head with ordinarily sufficient bearing surface. 'Not ordinarily recommended as a Phillips Recessed head-see Pan Head for better functional design.

TRUSS HEAD: Also known as oven head,
stove head, and oval binding head. A low, neat appearing, large diameter head having excellent design qualities, and as illustrated can be used to cover larger diameter clearance holes in sheet metal when additional play In assembly tolerance is required. Suggest pan head as a substitute.

HOLT HEAD (PATENTED): Provides the
perfect tamper-proof assembly. Theft-proof -decorative, yet inexpensive. Special drivers available for field removal or power driven assembly machines.

ONE-WAY HEAD: This ingenious,
tamper-proof type of head, once assembled cannot be removed. yet is driven with a standard screw driver. Manufactured with amazing economy in productive quantities, this, simple design can frequently solve costly assembly problem.

PHILIPS FINISHING WASHER HEAD: Designed as a neat appearance
product for the electronic and appliance trade with all threaded styles.

WASHER HEAD: This design has the
finished appearance of a conventional round head plus washer and was originality created to provide extra large bearing surface under the head. The modern "truss" head (carried in stock) normally answers this purpose. When a. larger diameter is required this washer head is recommended.

FLAT AND OVAL HEADS
(UNDERCUTI: This Is the standard flat or oval head SO' to 82' countersunk screw which has the lower one-third of the countersunk portion removed to facilitate production of extremely short lengths. As Illustrated, it will fit a standard counterbored hole and Is particularly adaptable to flush assemblies in thin stock.

FLAT HEAD (100' COUNTERSUNK): This
special flat head screw has been developed for applications requiring flush surfaces, and is recommended for use In soft materials. to distribute pressure over a larger and less angular surface. Very well adapted for use with thin aluminum, soft plastics, etc.

SQUARE SHOULDER SCREWS:
An adaptation of the standard carriage bolt design. Possesses a truss head on a square shank which resists rotation when located or, driven into place. This square shoulder may also be staked Into place as a permanent fastener. A great many varieties in all screw diameters are available in productive quantities.

Flat Head styles take full advantage of the
self-centering feature of the countersunk portion and provide a smooth, flush outer surface.

Type "T" (Overlug) For applications
requiring smooth, finished outer surfaces. Under surface of head is designed for perfect electrode contact.

INDENTED HEXAGON: An inexpensive
wrench head fastener made to standard hexagon head dimensions. The hex Is completely cold upset in a counterbored die and possesses an Identifying depression In the top surface of the head.

INDENTED HEXAGON WASHER HEAD: Produced in the same manner as the
standard Indented hexagon head but with a washer section at the base of the head to protect the finish of the assembly from wrench disfigurement.

ACORN HEAD (FULL UNDERCUTI: A
very neat appearing trim screw for appliance application-excellent wrench surfaces.

HEXAGON HEAD (TRIMMED): This is
the standard type of wrench-applied hexagon head, characterized by clean, sharp corners trimmed to close tolerances. Recommended for general applications. It Is available In all standard patterns and In all thread diameters.

HEAD STYLES (WELDING SCREWS):
The welding screw has been developed to provide a strong permanent threaded fastener which becomes an Integral part of the assembly. It utilizes the principle of projection welding by means of multiple lugs applied to various head surfaces. Type "U" (Underlug) for general application. Assembles easily into pre-located holes and fully utilizes head strength. Top surfaces of head designed for efficient welding anode contact.

STAINLESS STEEL WASHERS
DESCRIPTION Standard Flat Washers MATERIAL 18-8 Stainless Steel SIZES 1/4 thru 1.0

Standard Flat Washers

316 Stainless Steel 18-8 Stainless Steel 18-8 Stainless Steel 18-8 Stainless Steel 410 Stainless Steel 410 Stainless Steel

1/4 thru 1.0

Fender Washers

#10x11/16 thru 1/2x2

Machine Screw Washers Medium Split Lock Washers External Tooth Lock Washers Internal Tooth Lock Washers

#2 thru #10

#2 thru 1.00

#4 thru 3/8

#2 thru 3/8

METRIC NUTS
DIN SPEC CLASS Class 6 Style 1 Class 8 Style 1 Class 10 Style 1 Class 10 MATERIAL SIZES *M2 & M3

934

Zinc Plated Steel Nut

934

Zinc Plated Steel Nut

*M4 thru M20 M6 thru M20 M6 thru M20 M3 thru M20

934

Zinc Plated Steel Nut

934

Plain Steel Nut

985

Class 8

Zinc Plated Steel Nylon Insert Lock Nut

* M4 and smaller nuts do not require class marking


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