Value Collection 203049 5/8-11 X 1-3/4 in Grade 316 Ss Hex Cap Screw

Product Description

The VALUE COLLECTION 203049 is a fully threaded hex head cap screw designed for fastening applications that demand corrosion resistance and dimensional reliability. Sized at 5/8-11 UNC with a 1-3/4-inch length under head, it is manufactured from Grade 316 stainless steel and left uncoated with a bright finish. The 5/8-11 thread designation follows Unified National Coarse standards, making it compatible with standard UNC tapped holes and nuts. This fastener is a practical choice for plumbers, HVAC installers, pipefitters, and maintenance technicians working in wet, chemical-exposed, or marine environments where carbon steel fasteners would corrode prematurely.

This screw is suited for use in commercial and industrial installations where Grade 316 stainless steel is specified for its elevated resistance to chlorides and oxidizing agents compared to Grade 304. Typical applications include pipe flange assemblies, equipment mounting in mechanical rooms, pool and spa equipment enclosures, and general structural fastening in corrosive environments. The fully threaded shank provides maximum thread engagement across the full length of the fastener, which is preferred in applications requiring strong clamping force in thinner material stacks.

Key Features

• Grade 316 stainless steel construction for superior corrosion resistance in chloride and chemical-rich environments
• 5/8-11 UNC thread standard ensures compatibility with standard coarse-thread hardware
• Fully threaded shank maximizes thread engagement for strong, consistent clamping
• Bright uncoated finish — no coating to chip, peel, or interfere with torque values
• 1-3/4-inch length under head suits medium-depth fastening applications

Compatibility

Designed for use with standard 5/8-11 UNC tapped holes, nuts, and threaded inserts in applications specifying Grade 316 stainless steel fasteners.

Installation Notes

Installation is typically performed by licensed plumbers, HVAC technicians, pipefitters, or qualified maintenance personnel using standard hex wrenches or socket sets sized for a 5/8-11 fastener. Always de-energize or depressurize the system before servicing any assembly that requires fastener removal or replacement. Apply anti-seize compound when joining stainless steel fasteners to stainless steel hardware to prevent galling during installation and future removal. Follow applicable codes and equipment manufacturer torque guidelines for the specific assembly.