Sealing Socket Head Cap Screws

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70,000 psi to 99,999 psi

100,000 psi or greater

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Silicone Rubber

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Unified Standard Class 2A

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Export Control Classification Number (ECCN)

EAR99

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516 Products

About Socket Head Screws

Stainless Steel Socket Head
Screws with Split Lock Washer

Stainless steel screws have excellent corrosion resistance in most environments. They have a split lock washer to create tension and resist loosening from vibration.

Alloy Steel Socket Head
Screws with Split Lock Washer

With a tensile strength of 180,000 psi, these alloy steel screws are among the strongest we carry. They are stronger than Grade 8 steel screws and more than two and a half times stronger than stainless steel screws with split lock washer. The split lock washer helps to resist vibration.

Sealing Socket Head Screws

A rubber O-ring under the head of these screws prevents leaks and seals out contaminants.

Socket Head Screws with Flat Washer

A freely rotating washer distributes pressure over a wider area than a flange, preventing damage to your material's surface.

Metric Sealing Tamper-Resistant
Torx Flat Head Screws

With an O-ring under the head, these metric screws seal out leaks and contaminants while also preventing unwanted removal.

Sealing Tamper-Resistant Torx Flat Head Screws

Prevent unwanted removal, leaks, and contamination with these sealing Torx screws.

Metric Sealing Stainless Steel
Tamper-Resistant Button Head Torx Screws

To prevent unwanted removal, these metric screws have a tamper-resistant Torx drive—also known as a pin-in Torx drive—that makes them difficult to unscrew without special tools. An O-ring under the head blocks leaks and seals out dust and dirt.

Sealing Stainless Steel Tamper-Resistant
Button Head Torx Screws

To prevent unwanted removal, these screws have a tamper-resistant Torx drive—also known as a pin-in Torx drive—that makes them difficult to unscrew without special tools. An O-ring under the head blocks leaks and seals out dust and dirt.