Value Collection VS1070PR Hex Head Cap Screw 5/16-18

Product Description

The VALUE COLLECTION VS1070PR is a 5/16-18 x 1-1/2 inch hex head cap screw machined from silicon bronze alloy grade C651. This fully threaded fastener follows Unified National Coarse (UNC) thread standards and conforms to ASME B18.2.1 dimensional specifications. The bright, uncoated finish preserves the natural corrosion resistance of silicon bronze, making it well suited for wet, marine, or chemically aggressive environments. It is driven with a 1/2-inch hex key or standard hex wrench and is sold in a minimum order quantity of 10 pieces. Machinists, marine fabricators, plumbers, and general contractors select this fastener when corrosion resistance and non-magnetic properties are priorities.

This cap screw is used across a range of applications including marine hardware assembly, plumbing fixture installation, pump housings, and general fabrication work where stainless steel is not appropriate or silicon bronze is specified by design. The fully threaded shank provides maximum thread engagement across thin stock and short-clamp-length joints. It is appropriate for both residential and light commercial construction and maintenance work wherever an inch-series UNC fastener in a corrosion-resistant alloy is required.

Key Features

• Silicon bronze alloy grade C651 for strong natural corrosion resistance in marine and wet environments
• Fully threaded 5/16-18 UNC shank for maximum thread engagement
• Conforms to ASME B18.2.1 dimensional standard for consistent fitment
• Bright, uncoated finish retains alloy surface properties without added plating
• 1/2-inch hex drive compatible with standard wrenches and hex keys
• Inch measurement system with length measured under the head

Compatibility

Designed as a standard inch-series UNC hex head cap screw for use in any application specifying a 5/16-18 x 1-1/2 inch fully threaded fastener in silicon bronze.

Installation Notes

Install using a 1/2-inch open-end, box, or socket wrench. Ensure mating threads are clean and free of debris before driving. Do not exceed the material yield strength by overtightening, particularly in softer base materials such as aluminum or brass. Follow applicable fastener torque guidelines from the relevant mechanical or structural code for the application.