Value Collection R82222891 Hex Cap Screw 5/8-11 1-3/4 in 18-8 Ss

Product Description

The VALUE COLLECTION R82222891 is a 5/8-11 hex head cap screw measuring 1-3/4 inches under the head, manufactured from 18-8 stainless steel with no finish coating applied. The 18-8 stainless steel construction provides corrosion resistance suitable for wet, outdoor, and chemically aggressive environments. The thread form follows the Unified National Coarse (UNC) standard, making it compatible with standard 5/8-11 threaded holes and nuts. This fastener is sold individually and is appropriate for mechanical assemblies, equipment mounting, and structural connections where corrosion resistance is required. Maintenance technicians, millwrights, pipefitters, and general tradespeople commonly use this screw in field and shop applications.

This screw is suited for use in HVAC equipment mounting, plumbing system supports, electrical enclosure assembly, and general industrial or commercial mechanical work. Its uncoated 18-8 stainless steel finish makes it a practical choice in corrosive or high-moisture environments such as rooftop equipment, marine-adjacent installations, and chemical processing areas. The coarse thread pitch simplifies installation in field conditions and allows for faster assembly and disassembly compared to fine-thread fasteners.

Key Features

• 18-8 stainless steel construction for corrosion resistance in wet and outdoor environments
• 5/8-11 UNC thread for compatibility with standard coarse-thread hardware
• 1-3/4 inch length under head suits medium-depth fastening applications
• Uncoated finish — no risk of coating delamination or galvanic issues with stainless mating hardware
• Meets multiple MS military specifications (see Technical Specifications)
• Sold as a single unit — order exact quantities needed

Compatibility

Meets 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 in any application requiring a 5/8-11 UNC hex head cap screw in 18-8 stainless steel.

Installation Notes

Install using a standard 15/16-inch hex wrench or socket. Torque to the specification required by the equipment manufacturer or applicable structural standard — do not substitute torque values from this listing. When pairing with stainless nuts or inserts, apply an anti-seize compound to prevent galling, which is a common issue with stainless steel fasteners under high torque. Power down or de-energize any equipment before accessing fastener locations on live mechanical or electrical assemblies.