Value Collection R82222601 Hex Cap Screw 5/16-18 X 2-1/2 in 18-8 Ss

Product Description

The VALUE COLLECTION R82222601 is a 5/16-18 hex head cap screw with a 2-1/2 inch length under head, manufactured from 18-8 stainless steel with no coating applied. The 5/16-18 thread designation indicates a 5/16-inch nominal diameter with 18 threads per inch on a Unified National Coarse (UNC) thread standard. The 18-8 stainless steel construction provides corrosion resistance suitable for general industrial, HVAC, plumbing, and mechanical assembly applications. This fastener is installed by mechanical contractors, pipefitters, HVAC technicians, and maintenance professionals wherever a corrosion-resistant inch-series hex cap screw is required.

This hex head cap screw is suited for residential and commercial mechanical installations, panel assemblies, equipment mounting, and structural fastening applications where stainless steel is specified for corrosion or sanitary considerations. The UNC thread form is compatible with standard inch-series tapped holes and hex nuts of the appropriate size. Multiple military specifications are met by this fastener, making it appropriate for use on specification-driven projects requiring documented compliance.

Key Features

• 5/16-18 UNC thread form for compatibility with standard inch-series tapped holes and nuts
• 2-1/2 inch length under head for deeper fastening applications
• 18-8 stainless steel construction for corrosion resistance in wet, outdoor, and chemical-exposure environments
• Uncoated finish — no plating or coating that could affect thread fit or dimensional tolerances
• Meets multiple MS military specifications including MS 34307-341D and MS 35307 series

Compatibility

Meets the following military standards: MS 34307-341D, MS 35307-303D, MS 35307-305D, MS 35307-306D, MS 35307-307D, MS 35307-308D, MS 35307-310D, MS 35307-312D, MS 35307-313D, MS 35307-314D, MS 35307-316D, MS 35307-318D, MS 35307-331D, MS 35307-334D, MS 35307-336D, MS 35307-338D, MS 35307-340D. Designed for use with standard 5/16-18 UNC inch-series tapped holes and mating hex nuts.

Installation Notes

Install using a standard hex wrench, socket, or open-end wrench sized for a 5/16-inch hex cap screw. Verify thread engagement depth before torquing to ensure full thread contact in the mating hole. Power down or de-energize any associated equipment before fastening near electrical or mechanical assemblies. Stainless steel fasteners are susceptible to galling — apply an appropriate anti-seize compound when threading into stainless or aluminum tapped holes.