5/8"-11 Socket Head Cap Screws

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50,000 psi to 69,999 psi

70,000 psi to 99,999 psi

100,000 psi or greater

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Unified Standard Class 2A

Unified Standard Class 3A

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191 Products

About Socket Head Screws

Alloy Steel Socket Head Screws

The standard for high-strength fastening.

18-8 Stainless Steel Socket Head Screws

Use these general purpose 18-8 stainless steel screws for a variety of fastening applications. They have good chemical resistance.

Super-Corrosion-Resistant 316
Stainless Steel Socket Head Screws

More corrosion resistant than 18-8 stainless steel screws, these 316 stainless steel screws have excellent resistance to chemicals and salt water.

Plastic Socket Head Screws

Plastic screws are chemical and oil resistant, nonconductive, and lightweight.

Alloy Steel Thread-Locking Socket Head Screws

With a tensile strength of 170,000 psi, these alloy steel screws are among the strongest we carry. They are stronger than Grade 8 steel screws and are nearly two and a half times stronger than stainless steel thread-locking screws. They have a thread locker to prevent loosening from vibration.

Alloy Steel Wire-Lockable Socket Head Screws

With a tensile strength of 170,000 psi, these alloy steel screws are among the strongest we carry. They are stronger than Grade 8 steel screws and are more than twice as strong as stainless steel wire-lockable screws. These resist vibration better than any other socket head screw.

Hex Drive Flat Head Screws

Alloy Steel Hex Drive Flat Head Screws

18-8 Stainless Steel Hex Drive Flat Head Screws

These 18-8 stainless steel screws have good chemical resistance and may be mildly magnetic.

316 Stainless Steel Hex Drive Flat Head Screws

More corrosion resistant than 18-8 stainless steel screws, these screws have excellent resistance to chemicals and salt water. They may be mildly magnetic.

Brass Hex Drive Flat Head Screws

Brass screws are electrically conductive, nonmagnetic, and have good corrosion resistance.

Hex Drive Rounded Head Screws

18-8 Stainless Steel Button Head Hex Drive Screws

18-8 stainless steel button head screws have good chemical resistance and may be mildly magnetic.

316 Stainless Steel Button Head Hex Drive Screws

More corrosion resistant than 18-8 stainless steel screws, these button head screws have excellent resistance to chemicals and salt water. They may be mildly magnetic.

Alloy Steel Button Head Hex Drive Screws

Brass Button Head Hex Drive Screws

Brass button head screws are corrosion resistant in wet environments, nonmagnetic, and electrically conductive.

About Socket Head Screws

Socket Head Screws

Alloy Steel Socket Head Screws

18-8 Stainless Steel Socket Head Screws

Super-Corrosion-Resistant 316Stainless Steel Socket Head Screws

Plastic Socket Head Screws

Alloy Steel Thread-Locking Socket Head Screws

Alloy Steel Wire-Lockable Socket Head Screws

Hex Drive Flat Head Screws

Alloy Steel Hex Drive Flat Head Screws

18-8 Stainless Steel Hex Drive Flat Head Screws

316 Stainless Steel Hex Drive Flat Head Screws

Brass Hex Drive Flat Head Screws

Hex Drive Rounded Head Screws

18-8 Stainless Steel Button Head Hex Drive Screws

316 Stainless Steel Button Head Hex Drive Screws

Alloy Steel Button Head Hex Drive Screws

Brass Button Head Hex Drive Screws

Super-Corrosion-Resistant 316
Stainless Steel Socket Head Screws