Value Collection VS1030PR Hex Head Cap Screw 1/4-20

Product Description

The VALUE COLLECTION VS1030PR is a 1/4-20 x 1-1/4 inch hex head cap screw manufactured from silicon bronze alloy grade C651. Fully threaded along its entire shank length under the head, it follows UNC thread standards and conforms to ASME B18.2.1 dimensional specifications. The bright, uncoated finish preserves the natural corrosion resistance inherent to silicon bronze, making this fastener well-suited for environments where galvanic compatibility or saltwater exposure is a concern. A 7/16-inch hex drive size accommodates standard wrenches and sockets used in professional fastener installation.

This cap screw is used across marine, plumbing, electrical, and general mechanical assembly applications where silicon bronze is specified for its corrosion resistance and non-sparking characteristics. It is appropriate for use in both residential and commercial installations where UNC-threaded 1/4-20 fasteners are required and where steel or stainless alternatives are unsuitable due to galvanic or environmental constraints. Trade professionals including marine technicians, plumbers, and electricians commonly specify silicon bronze hardware in wet or corrosive service environments.

Key Features

• Silicon bronze C651 material provides inherent corrosion resistance without a protective coating
• Fully threaded shank under the head for maximum thread engagement
• UNC thread standard, 1/4-20 thread size, conforms to ASME B18.2.1
• Bright, uncoated finish — no plating to flake, chip, or introduce galvanic incompatibility
• 7/16-inch hex drive accommodates standard box-end, open-end, and socket wrenches

Compatibility

Designed for use in any application requiring a 1/4-20 UNC fully threaded hex head cap screw in silicon bronze. Fits standard 1/4-20 threaded holes and inserts per ASME B18.2.1 specifications.

Installation Notes

Install with a 7/16-inch wrench or socket. Ensure mating threads are clean and free of debris before installation. Silicon bronze is a softer alloy than steel — avoid impact drivers set at high torque, and do not overtighten. Where fasteners will be used in submerged or marine service, verify that mating materials are galvanically compatible with copper-based alloys.