Mil. Spec. Socket Head Cap Screws

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Specifications Met

ASME B18.3

ASTM Standard

Federal Specification

NAS

SAE AMS5737

Military Specification

System of Measurement

Thread Size

Length

Material

Fastener Head Type

Socket Head Profile

Drive Style

Threading

Tensile Strength

70,000 psi to 99,999 psi

100,000 psi or greater

Head Diameter

Finish

Thread Direction

Head Height

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DFARS Specialty Metals

Countersink Angle

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Thread Spacing

Thread Fit

Unified Standard Class 3A

REACH

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Export Control Classification Number (ECCN)

Flat Head Profile

Hardness

454 Products

About Socket Head Screws

Mil. Spec. Alloy Steel Socket Head Screws

Choose these screws for their adherence to strict military standards for material and construction.

Mil. Spec. 18-8 Stainless Steel Socket Head Screws

Choose these screws for their adherence to strict military standards for material and construction. Screws are 18-8 stainless steel for good chemical resistance.

High-Strength A286 Stainless
Steel Socket Head Screws

Often used to fasten parts in engines and turbines, these are our strongest stainless steel screws. They are comparable in strength to alloy steel with the corrosion resistance of 18-8 stainless steel.

Mil. Spec. Alloy Steel Hex Drive Flat Head Screws

Choose these screws for their adherence to strict military standards for material and construction.

Mil. Spec. Stainless Steel
Hex Drive Flat Head Screws

Choose these screws for their adherence to strict military standards for material and construction.

Stainless Steel Thread-Locking
Hex Drive Flat Head Screws

Stainless steel screws have excellent corrosion resistance in most environments.

Stainless Steel Thread-Locking
Button Head Hex Drive Screws

Made from 18-8 stainless steel, these screws have good chemical resistance and may be mildly magnetic. A nylon patch bonded to the threads adds friction to prevent loosening from vibration.

Metric Stainless Steel Thread-Locking
Button Head Hex Drive Screws

These metric 18-8 stainless steel screws have good chemical resistance and may be mildly magnetic. A nylon patch bonded to the threads adds friction to prevent loosening from vibration.

Alloy Steel Thread-Locking
Button Head Hex Drive Screws

Made from alloy steel, these screws are nearly twice as strong as stainless steel button head screws.

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About Socket Head Screws

Screws and Bolts

Mil. Spec. Alloy Steel Socket Head Screws

Mil. Spec. 18-8 Stainless Steel Socket Head Screws

High-Strength A286 Stainless
Steel Socket Head Screws

Mil. Spec. Alloy Steel Hex Drive Flat Head Screws

Mil. Spec. Stainless Steel
Hex Drive Flat Head Screws

Stainless Steel Thread-Locking
Hex Drive Flat Head Screws

Stainless Steel Thread-Locking
Button Head Hex Drive Screws

Metric Stainless Steel Thread-Locking
Button Head Hex Drive Screws

Alloy Steel Thread-Locking
Button Head Hex Drive Screws

About Socket Head Screws

Screws and Bolts

Mil. Spec. Alloy Steel Socket Head Screws

Mil. Spec. 18-8 Stainless Steel Socket Head Screws

High-Strength A286 StainlessSteel Socket Head Screws

Mil. Spec. Alloy Steel Hex Drive Flat Head Screws

Mil. Spec. Stainless SteelHex Drive Flat Head Screws

Stainless Steel Thread-LockingHex Drive Flat Head Screws

Stainless Steel Thread-LockingButton Head Hex Drive Screws

Metric Stainless Steel Thread-LockingButton Head Hex Drive Screws

Alloy Steel Thread-LockingButton Head Hex Drive Screws

High-Strength A286 Stainless
Steel Socket Head Screws

Mil. Spec. Stainless Steel
Hex Drive Flat Head Screws

Stainless Steel Thread-Locking
Hex Drive Flat Head Screws

Stainless Steel Thread-Locking
Button Head Hex Drive Screws

Metric Stainless Steel Thread-Locking
Button Head Hex Drive Screws

Alloy Steel Thread-Locking
Button Head Hex Drive Screws