Value Collection 592311PR Hex Socket Cap Screw 5/16-24 Unf

Product Description

The VALUE COLLECTION 592311PR is a hex socket cap screw designed for secure fastening in applications requiring precise thread engagement and corrosion resistance. It features a 5/16-24 UNF thread size, a 1-3/4 inch length under head, and is partially threaded to allow controlled clamping force. The 1/4 inch hex drive accepts standard Allen keys and hex bit drivers. Manufactured from 18-8 austenitic stainless steel (Material Grade A2) and left uncoated with a bright finish, this fastener meets ASME/ANSI B18.3 and ASTM F837 standards. It is suited for mechanical assemblies, HVAC equipment, plumbing fixtures, and general trade applications where stainless fasteners are specified.

This screw is appropriate for residential and light commercial installations where corrosion resistance is a priority, such as outdoor equipment mounts, wet-area plumbing assemblies, pool and spa hardware, and interior mechanical panels. The partial threading is suited for applications that require a grip length or where the unthreaded shank must bear shear load. Installers working to ASME or ASTM fastener specifications will find this screw compliant with those standards.

Key Features

• 5/16-24 UNF thread for fine-thread engagement and vibration resistance
• 1-3/4 inch length under head with partial threading for shear-load applications
• 1/4 inch hex socket drive compatible with standard Allen keys and hex bit drivers
• 18-8 austenitic stainless steel, Material Grade A2, for corrosion resistance
• Bright/uncoated finish — no coating buildup to interfere with thread fit
• Meets ASME/ANSI B18.3 and ASTM F837 fastener standards

Compatibility

Designed as a standard replacement or stock fastener for any application calling for a 5/16-24 UNF hex socket cap screw with a 1-3/4 inch length under head in 18-8 stainless steel per ASME/ANSI B18.3 and ASTM F837.

Installation Notes

Installation is performed with a 1/4 inch hex key or hex bit driver; verify torque requirements against the equipment manufacturer's fastener specification before installation. Power down or depressurize the relevant system before accessing fastener locations in live mechanical or electrical enclosures. Do not mix stainless steel fasteners with dissimilar metals in contact areas where galvanic corrosion is a concern. Apply an anti-seize compound when specified by the equipment OEM to prevent galling on stainless threads.