Value Collection 592259PR Hex Socket Cap Screw 1/4-20 Unc

Product Description

The VALUE COLLECTION 592259PR is a hex socket cap screw designed for secure, high-torque fastening in mechanical, plumbing, and industrial assemblies. It features a 1/4-20 UNC thread size, a 2-1/2 inch length under head, and partial threading along the shank. The drive is a 3/16 inch hex socket, requiring an Allen key or hex driver for installation. Constructed from 18-8 austenitic stainless steel (Grade A2), this fastener resists corrosion and is suitable for wet or chemically aggressive environments. It carries an uncoated, bright finish and meets ASME/ANSI B18.3 and ASTM F837 fastener standards. Licensed tradespeople and maintenance technicians install this type of fastener across a wide range of equipment and structural applications.

This cap screw is suited for general mechanical assemblies, HVAC equipment mounting, plumbing fixtures, pump housings, and light structural connections where corrosion resistance and a recessed drive are required. The partial threading provides a stronger shank section in applications subject to shear loads or where precise clamping length is needed. Sold individually with a minimum order quantity of 5 units.

Key Features

• 1/4-20 UNC thread for wide compatibility with standard inch-based hardware
• 2-1/2 inch length under head for deeper engagement or thicker material stacks
• Partially threaded shank for improved shear strength and accurate clamping
• 18-8 austenitic stainless steel (Grade A2) provides strong corrosion resistance
• Bright, uncoated finish — no coating to crack, chip, or interfere with thread fit
• Meets ASME/ANSI B18.3 and ASTM F837 standards for dimensional and mechanical compliance

Compatibility

Designed as a standard-dimension inch-series hex socket cap screw suitable for any application accepting a 1/4-20 UNC partially threaded socket head cap screw per ASME/ANSI B18.3.

Installation Notes

Installation requires a 3/16 inch hex key or Allen driver. Always verify the mating threaded hole or nut meets 1/4-20 UNC specifications before driving the fastener. De-energize or shut down any equipment being serviced before fastener work begins. Apply thread-locking compound or anti-seize as appropriate for the application environment and service interval.