Value Collection VS1118PR Hex Head Cap Screw 3/8-16 2-1/2 in

Product Description

The VALUE COLLECTION VS1118PR is a fully threaded hex head cap screw designed for general fastening applications in corrosion-resistant assemblies. Manufactured from silicon bronze alloy grade C651, this fastener delivers excellent resistance to saltwater, moisture, and mild chemical exposure, making it a preferred choice in marine, plumbing, and coastal construction environments. The screw measures 3/8-16 thread size with a 2-1/2 inch length under head, features a unified national coarse (UNC) thread standard, and is finished bright/uncoated. It conforms to ASME B18.2.1 standards and is driven with a 9/16 inch hex key. Licensed tradespeople and construction professionals install this fastener where stainless steel may cause galvanic corrosion concerns.

This hex head cap screw is suited for residential and commercial applications where corrosion resistance is critical. Typical use cases include boat building, dock and pier construction, marine hardware assembly, bronze valve and fitting installations, and any structural connection exposed to humidity or standing water. The fully threaded shank provides consistent clamping force along the full length of the fastener, which is particularly useful in thin-material assemblies or applications requiring engagement close to the head. Plumbers, marine contractors, and general tradespeople commonly specify silicon bronze fasteners where material compatibility with copper alloy fittings is required.

Key Features

• Silicon bronze grade C651 construction resists saltwater, moisture, and galvanic corrosion
• Fully threaded shank allows engagement along the entire 2-1/2 inch length under head
• 3/8-16 UNC thread for broad compatibility with standard tapped holes and nuts
• Conforms to ASME B18.2.1 dimensional standards for hex head cap screws
• Bright/uncoated finish preserves natural silicon bronze appearance and conductivity
• 9/16 inch hex drive fits standard open-end, box, and socket wrenches

Compatibility

Designed as a standard 3/8-16 UNC hex head cap screw for use in any application requiring a fully threaded silicon bronze fastener conforming to ASME B18.2.1 specifications.

Installation Notes

Installation requires a standard 9/16 inch wrench or socket. Power down or de-energize any associated equipment before fastener replacement in electrical or mechanical assemblies. Avoid mixing silicon bronze fasteners with incompatible dissimilar metals in submerged or high-humidity environments to prevent galvanic corrosion. Follow applicable building, marine, or mechanical codes for fastener torque and joint design requirements.