Value Collection A997515 Hex Socket Cap Screw 1/2-13 Unc

Product Description

The VALUE COLLECTION A997515 is a hex socket cap screw designed for secure, high-torque fastening in structural and mechanical assemblies. Sized at 1/2-13 UNC with a 5-inch length under head, this screw is partially threaded and driven with a 3/8-inch hex key. It is manufactured from 18-8 austenitic stainless steel (Material Grade A2), which provides solid corrosion resistance in wet or chemically active environments. The bright, uncoated finish maintains dimensional accuracy at the drive interface. Each package contains 5 screws. This fastener meets ASME/ANSI B18.3 and ASTM F837 standards, making it appropriate for precision and load-bearing applications where documented fastener compliance is required.

This cap screw is suited for general industrial, mechanical, and structural applications where a recessed hex drive is preferred over an external hex head. Typical installation scenarios include equipment frames, machine bases, flanged connections, and assemblies exposed to moisture or mild corrosive environments where stainless steel is specified. The 1/2-13 UNC thread form is a coarse-thread standard widely used in North American manufacturing and fabrication. The partial threading allows for full clamping force across unthreaded shank sections in through-bolt applications.

Key Features

• 1/2-13 UNC coarse thread, 5-inch length under head, partially threaded
• 3/8-inch hex drive for high-torque socket wrench or T-handle installation
• 18-8 austenitic stainless steel, Material Grade A2 for corrosion resistance
• Bright, uncoated finish preserves tight dimensional tolerances
• Compliant with ASME/ANSI B18.3 and ASTM F837 fastener standards
• Sold in a package of 5 screws

Compatibility

Designed as a standard 1/2-13 UNC hex socket cap screw for use in any application requiring ASME/ANSI B18.3 or ASTM F837 compliant fasteners in that thread size and drive configuration.

Installation Notes

Installation is performed by machinists, millwrights, pipefitters, or general mechanical tradespeople using a 3/8-inch hex key, Allen wrench, or socket driver. De-energize or depressurize the assembly before fastener replacement or torquing. Apply anti-seize compound if installing into dissimilar metals to prevent galvanic corrosion. Follow applicable ASME or equipment-manufacturer torque specifications for 1/2-13 UNC hardware.