Value Collection 592477BR Hex Socket Cap Screw 7/8-9 Unc

Product Description

The VALUE COLLECTION 592477BR is a hex socket cap screw designed for high-strength fastening in demanding mechanical and structural applications. It features a 7/8-9 UNC thread form and measures 3 inches in length under the head, fully threaded from shank to head. The drive is a 3/4-inch hex socket, requiring a hex key or Allen-type driver for installation. Constructed from 18-8 austenitic stainless steel (Grade A2), this fastener resists corrosion in wet, chemical, and outdoor environments. The bright, uncoated finish is left in its as-machined state, preserving dimensional accuracy. Licensed machinists, maintenance technicians, and fabricators commonly specify this screw where thread engagement depth and corrosion resistance are both critical.

This fastener is suited for use in industrial machinery, fabricated assemblies, marine hardware, food processing equipment, and general mechanical assemblies where stainless steel is specified. The 7/8-9 UNC coarse thread pitch provides strong clamping force and is well-suited for applications involving vibration or frequent disassembly. It meets ASME/ANSI B18.3 and ASTM F837 standards, making it appropriate for controlled-tolerance fastener applications in both light commercial and heavy industrial settings.

Key Features

• 7/8-9 UNC coarse thread for strong clamping and vibration resistance
• 3 inches length under head, fully threaded for maximum thread engagement
• 3/4-inch hex socket drive for torque application with standard hex key tooling
• 18-8 austenitic stainless steel (Grade A2) for corrosion resistance
• Bright, uncoated finish maintains precise dimensional tolerances
• Meets ASME/ANSI B18.3 and ASTM F837 fastener standards

Compatibility

Designed as a standard-dimension hex socket cap screw for use in any application specifying a 7/8-9 UNC fully threaded fastener per ASME/ANSI B18.3.

Installation Notes

Installation is performed with a 3/4-inch hex key or socket driver. Ensure mating threads are clean and free of debris before assembly. Stainless steel fasteners are susceptible to galling during installation — apply an appropriate anti-seize compound to threads when specified by the design. Follow applicable industry or equipment manufacturer torque guidelines for the fastener size and material grade.