常用螺丝头型、槽型、牙型图
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 SIZES
Zinc Plated 4-40x1/8 thru Steel 1/4-20x4
Zinc Plated 6-32x2 thru Steel 1/4-20x4
Zinc Plated 6-32 thru 1/4-20
Steel Zinc Plated 2-56x1/8 thru
Steel 1/2-13
Zinc Plated 2-56x1/8 thru
Steel 3/8-16
Zinc Plated 2-56x1/8 thru Steel 1/4-20x1-1/2
Zinc Plated 2-56x1/8 thru Steel 5/16-18x2
Zinc Plated 4-40x1/4 thru Steel 1/4-20x3
Zinc Plated 2-56x1/8 thru Steel 3/8-16x3
Zinc Plated 2-56x1/4 thru
Steel 3/8-16
Zinc Plated 4-40x3/16 thru Steel
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 4-40x1/4 thru Steel 1/4-20x1
Zinc Plated 2-56x1/8 thru Steel 1/4-20x1-1/4
Zinc Plated 2-56x1/8 thru Steel 1/2-13x6
Zinc Plated 2-56x1/8 thru Steel 3/8-16x1/2
Zinc Plated 2-56x1/8 thru Steel 3/8-16x1-1/4
Zinc Plated 4-40x1/4 thru Steel 1/4-20x2
Zinc Plated 2-56x1/8 thru Steel 3/8-16x3
Zinc Plated 2-56x1/8 thru Steel 1/2-13x6
Zinc Plated 4-40x1/4 thru
Steel 1/2-13
Zinc Plated 4-40x1/4 thru
Steel 3/8-16
Zinc Plated 4-40x1/4 thru
Steel
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
Pan Head Phillips External Sems
Machine Screw
Pan Head Phillips Internal 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
4-40x3/16 thru 1/4-20x1-1/4
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 1/4 thru
1.0
Fender Washers
Machine #10x11/16 thru
1/2x2
#2 thru
DIN SPEC934
934
934
934
985
Screw Stainless Washers Steel Medium Split 18-8 Lock Stainless Washers Steel External Tooth 410 Lock Stainless Washers Steel Internal Tooth 410 Lock Stainless Washers
Steel
METRIC NUTS
CLASS
MATERIAL
Class 6 Style Zinc Plated Steel Nut1 Class 8 Style Zinc Plated Steel Nut1 Class 10 Style Zinc Plated Steel Nut1 Class 10
Plain Steel Nut
Class Zinc Plated Steel 8
Nylon Insert Lock Nut#10
#2 thru
1.00
#4 thru
3/8
#2 thru
3/8
SIZES
*M2 & M3
*M4 thru M20
M6 thru M20
M6 thru M20
M3 thru M20
* M4 and smaller nuts do not require class marking
常用螺丝头型、槽型、牙型图
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 SIZES
Zinc Plated 4-40x1/8 thru Steel 1/4-20x4
Zinc Plated 6-32x2 thru Steel 1/4-20x4
Zinc Plated 6-32 thru 1/4-20
Steel Zinc Plated 2-56x1/8 thru
Steel 1/2-13
Zinc Plated 2-56x1/8 thru
Steel 3/8-16
Zinc Plated 2-56x1/8 thru Steel 1/4-20x1-1/2
Zinc Plated 2-56x1/8 thru Steel 5/16-18x2
Zinc Plated 4-40x1/4 thru Steel 1/4-20x3
Zinc Plated 2-56x1/8 thru Steel 3/8-16x3
Zinc Plated 2-56x1/4 thru
Steel 3/8-16
Zinc Plated 4-40x3/16 thru Steel
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 4-40x1/4 thru Steel 1/4-20x1
Zinc Plated 2-56x1/8 thru Steel 1/4-20x1-1/4
Zinc Plated 2-56x1/8 thru Steel 1/2-13x6
Zinc Plated 2-56x1/8 thru Steel 3/8-16x1/2
Zinc Plated 2-56x1/8 thru Steel 3/8-16x1-1/4
Zinc Plated 4-40x1/4 thru Steel 1/4-20x2
Zinc Plated 2-56x1/8 thru Steel 3/8-16x3
Zinc Plated 2-56x1/8 thru Steel 1/2-13x6
Zinc Plated 4-40x1/4 thru
Steel 1/2-13
Zinc Plated 4-40x1/4 thru
Steel 3/8-16
Zinc Plated 4-40x1/4 thru
Steel
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
Pan Head Phillips External Sems
Machine Screw
Pan Head Phillips Internal 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
4-40x3/16 thru 1/4-20x1-1/4
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 1/4 thru
1.0
Fender Washers
Machine #10x11/16 thru
1/2x2
#2 thru
DIN SPEC934
934
934
934
985
Screw Stainless Washers Steel Medium Split 18-8 Lock Stainless Washers Steel External Tooth 410 Lock Stainless Washers Steel Internal Tooth 410 Lock Stainless Washers
Steel
METRIC NUTS
CLASS
MATERIAL
Class 6 Style Zinc Plated Steel Nut1 Class 8 Style Zinc Plated Steel Nut1 Class 10 Style Zinc Plated Steel Nut1 Class 10
Plain Steel Nut
Class Zinc Plated Steel 8
Nylon Insert Lock Nut#10
#2 thru
1.00
#4 thru
3/8
#2 thru
3/8
SIZES
*M2 & M3
*M4 thru M20
M6 thru M20
M6 thru M20
M3 thru M20
* M4 and smaller nuts do not require class marking