Value Collection 592411PR Hex Socket Cap Screw 1/2-20 Unf

Product Description

The VALUE COLLECTION 592411PR is a hex socket cap screw designed for applications requiring a secure, high-strength threaded fastener. With a 1/2-20 UNF thread size and a 2.25-inch length under head, this fastener is partially threaded and driven with a 3/8-inch hex key. It is manufactured from 18-8 austenitic stainless steel in a bright, uncoated finish, providing solid corrosion resistance for both indoor and outdoor installations. Licensed trades and industrial maintenance crews routinely install this style of cap screw in mechanical assemblies, structural connections, and equipment mounting applications where UNF thread engagement and stainless durability are required.

This screw is suited for general mechanical, industrial, and light structural applications where a fine-thread socket cap fastener is specified. Partial threading supports proper clamping load distribution across the joint. The stainless steel construction makes it appropriate for environments with moisture exposure or where galvanic concerns with certain base metals are a consideration. It conforms to ASME/ANSI B18.3 and ASTM F837 fastener standards, which are commonly referenced in engineered assembly drawings and maintenance specifications.

Key Features

• 1/2-20 UNF fine thread for precise thread engagement and clamping load
• 2.25-inch length under head with partial threading for proper joint clamping
• 3/8-inch hex drive socket for standard Allen key or hex bit installation
• 18-8 austenitic stainless steel, Material Grade A2, for corrosion resistance
• Bright, uncoated finish — no plating to chip, flake, or affect thread tolerances
• Meets ASME/ANSI B18.3 and ASTM F837 standards

Compatibility

Designed as a standard 1/2-20 UNF hex socket cap screw for use in any assembly or equipment application specifying an ASME/ANSI B18.3 or ASTM F837 compliant stainless steel socket cap fastener of this thread size and length.

Installation Notes

Installation is performed with a 3/8-inch hex key or appropriately sized hex bit driver. De-energize and lock out any equipment before servicing fastened assemblies in accordance with applicable safety procedures. Apply an anti-seize compound appropriate for stainless fasteners when assembling into stainless or aluminum mating threads to prevent galling. Follow the engineered torque specification called out in the assembly drawing — do not substitute a generic torque value.