Value Collection MP30589-4 Hex Cap Screw 5/16-18 X 4 in 316 Ss

Product Description

The VALUE COLLECTION MP30589-4 is a partially threaded hex head cap screw designed for secure fastening in applications that demand corrosion resistance and mechanical strength. Manufactured from Grade 316 stainless steel, this fastener features a 5/16-18 UNC thread size and measures 4 inches in length under the head. The uncoated finish maintains dimensional consistency and is well suited for environments where bare stainless steel is preferred or required. Electricians, plumbers, HVAC technicians, and general contractors rely on fasteners like this for equipment mounting, panel assembly, and structural connections in demanding service environments.

This hex head cap screw is appropriate for residential and commercial installations where corrosion from moisture, chemicals, or outdoor exposure is a concern. The Grade 316 stainless steel construction provides superior resistance to chlorides and salt-laden environments compared to standard 304 stainless, making it a common choice for coastal installations, pool equipment, and wet mechanical rooms. The partially threaded shank allows for clamping force between mated surfaces without thread engagement through the full grip length.

Key Features

• Grade 316 stainless steel construction for enhanced corrosion resistance
• 5/16-18 UNC thread standard for compatibility with standard inch-series nuts and tapped holes
• 4-inch length under head for deeper grip and clamping range
• Partially threaded shank for controlled clamping without full-length thread engagement
• Uncoated finish preserves dimensional tolerances and bare metal surface
• Hex drive head accepts standard hex wrenches and sockets

Compatibility

Designed for use with standard 5/16-18 UNC inch-series hex nuts, flange nuts, and tapped components in general mechanical and trade assembly applications.

Installation Notes

Installation is performed with a standard hex wrench or socket drive. Always verify thread engagement and mating nut or tapped hole specification before assembly. Stainless steel fasteners are susceptible to galling — apply an appropriate anti-seize compound when joining stainless-to-stainless components. Follow applicable mechanical and structural codes for the specific application and jurisdiction.