Value Collection 592471BR Hex Socket Cap Screw 7/8-9 Unc

Product Description

The VALUE COLLECTION 592471BR is a hex socket cap screw designed for secure, high-torque fastening in structural and mechanical assemblies. It features a 7/8-9 UNC thread size, a 2-1/4-inch length under head, and full threading from head to tip. The 3/4-inch hex drive socket accepts a standard hex key or Allen driver. Constructed from 18-8 austenitic stainless steel in an uncoated, bright finish, this fastener delivers solid corrosion resistance without surface treatment. It is suited for use by machinists, millwrights, pipefitters, and maintenance mechanics working in industrial, commercial, or marine environments.

This screw is a standard fastener for applications where a low-profile cap head and recessed hex drive are required. Common uses include equipment frames, machine bases, flanges, brackets, and structural connections. The fully threaded shank provides maximum thread engagement across the full grip length. The ASME/ANSI B18.3 and ASTM F837 standards ensure dimensional consistency for drop-in replacement and OEM repair scenarios.

Key Features

• 7/8-9 UNC thread — coarse pitch for fast engagement in steel and aluminum tapped holes
• 2-1/4-inch length under head with full threading for maximum grip
• 3/4-inch hex socket drive for use with standard Allen keys or hex bit drivers
• 18-8 austenitic stainless steel (Material Grade A2) for corrosion resistance
• Bright, uncoated finish — no plating variation to affect tolerances
• Meets ASME/ANSI B18.3 and ASTM F837 dimensional and material standards

Compatibility

Designed as a standard OEM-style hex socket cap screw conforming to ASME/ANSI B18.3 and ASTM F837, compatible with any 7/8-9 UNC tapped hole requiring a 3/4-inch hex socket drive fastener.

Installation Notes

Installation is performed using a 3/4-inch hex key, T-handle driver, or hex bit with appropriate drive tool. Ensure the mating tapped hole is clean and free of debris before installation. For stainless steel fasteners, apply an anti-seize compound to the threads to prevent galling during torquing. Follow applicable ASME or equipment manufacturer torque specifications for the fastener diameter and material grade.