Value Collection 011523BR Hex Socket Cap Screw 7/8-9 Unc

Product Description

The VALUE COLLECTION 011523BR is a hex socket cap screw designed for high-strength fastening applications in industrial, mechanical, and structural assemblies. Built from alloy steel with a black oxide coating, this screw measures 8 inches in length under the head and features a 3/4-inch hex drive socket. It is partially threaded along the shank, which helps distribute load and resist shear forces in precision-fit bolt holes. At 1.42 pounds, it is a substantial fastener suited for heavy-duty clamping and bolted joint applications. Licensed mechanics, millwrights, maintenance technicians, and assemblers are the typical installers of hardware in this class.

This cap screw is sized at 7/8-9 UNC, making it appropriate for coarse-thread tapped holes in machine frames, fixtures, dies, tooling plates, and similar industrial equipment. The black oxide finish provides mild corrosion resistance and reduces light reflection, which is useful in shop-floor and tooling environments. The partial threading allows the unthreaded shank to bear lateral load while the threaded end provides clamping force. It conforms to ASME/ANSI B18.3 and ASTM A574 standards, which are the recognized benchmarks for alloy steel socket cap screws in industrial service.

Key Features

• 7/8-9 UNC coarse thread for use in standard tapped holes
• 8-inch length under head for deep-reach fastening applications
• 3/4-inch internal hex drive socket for high-torque wrench engagement
• Partially threaded shank for combined shear and clamping load performance
• Alloy steel construction meets ASTM A574 strength requirements
• Black oxide coating provides mild corrosion resistance and a non-reflective finish

Compatibility

Designed as a standard replacement or service fastener for any application requiring a 7/8-9 UNC partially threaded hex socket cap screw conforming to ASME/ANSI B18.3 and ASTM A574 specifications.

Installation Notes

Installation should be performed by a qualified mechanic or maintenance technician using a 3/4-inch hex key or socket driver rated for the required torque. Always verify that the mating tapped hole is clean, free of debris, and conforms to the 7/8-9 UNC thread specification before installation. De-energize and lock out any equipment before fastening or removing hardware in mechanical assemblies. Do not substitute a standard-grade fastener in place of an ASTM A574 alloy steel screw where high-strength fastening is specified by the equipment manufacturer or engineering drawing.