Value Collection 592289PR 5/16-18 Socket Cap Screw Stainless

Product Description

The VALUE COLLECTION 592289PR is a 5/16-18 UNC hex socket cap screw designed for secure, high-strength fastening in mechanical, structural, and industrial assemblies. Built from 18-8 austenitic stainless steel with a black oxide coating, this cap screw delivers corrosion resistance with a low-reflectance finish. The 2-3/4 inch length under head and 1/4 inch hex socket drive make it compatible with standard Allen keys and hex drivers. It is partially threaded, which provides stronger clamping force in metal-to-metal joints. Maintenance technicians, millwrights, and equipment assemblers working in corrosive or high-humidity environments will find this fastener well-suited to demanding service conditions.

This screw is used in general industrial, mechanical, and HVAC equipment assemblies where a flush or recessed drive head is required. The socket cap head allows installation in tight clearances where a traditional hex bolt head would interfere. Partial threading makes it appropriate for through-bolted joints requiring precise clamping without thread engagement across the full grip length. It is sold in a minimum order quantity of 5 pieces per transaction.

Key Features

• 5/16-18 UNC thread size with partial threading for strong metal-to-metal clamping
• 2-3/4 inch length under head for deep grip 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
• Black oxide coating reduces glare and provides mild additional surface protection
• Meets ASME/ANSI B18.3 and ASTM F837 fastener standards

Compatibility

Designed as a standard UNC hex socket cap screw for use in any assembly requiring a 5/16-18 thread and a 1/4 inch hex socket drive, conforming to ASME/ANSI B18.3 dimensional standards.

Installation Notes

Installation requires a 1/4 inch hex key or hex bit driver. Ensure mating threads are clean and free of debris before driving to prevent cross-threading. Power down or de-energize any equipment before accessing fastened assemblies in electrical or mechanical panels. Do not mix stainless steel fasteners with dissimilar metals in environments where galvanic corrosion is a concern without appropriate isolation measures.