Value Collection 581263PR Hex Socket Cap Screw 8-32 Unc

Product Description

The VALUE COLLECTION 581263PR is a hex socket cap screw engineered for applications requiring a clean, recessed fastener with reliable clamping strength. Sized at 8-32 UNC with a 3-inch length under head, this fastener is partially threaded and driven with a 9/64-inch hex key. The alloy steel construction is finished in black oxide, which provides moderate corrosion resistance and reduces light reflection on exposed surfaces. It meets ASME/ANSI B18.3 and ASTM A574 standards, making it appropriate for precision mechanical assemblies, jigs, fixtures, and general industrial fabrication work.

This screw is suited for light-to-medium-duty mechanical assemblies in industrial, commercial, and shop environments. The 8-32 UNC thread is a standard coarse pitch commonly found in machine components, enclosures, brackets, and tooling fixtures. The 3-inch under-head length accommodates applications with deeper material stacks or where a partial thread engagement is intentional for shoulder-fit or clearance reasons. Machinists, maintenance technicians, and fabricators will find this fastener applicable in a broad range of assembly tasks.

Key Features

• 8-32 UNC thread size with 3-inch length under head
• Partially threaded shank for shoulder-fit and clearance-hole applications
• 9/64-inch hex socket drive for use with standard Allen keys or hex bit drivers
• Alloy steel construction meets ASTM A574 high-strength socket screw specification
• Black oxide finish for moderate corrosion resistance and low-reflectance appearance
• Compliant with ASME/ANSI B18.3 dimensional standard

Compatibility

Designed as a standard 8-32 UNC hex socket cap screw for use in any application calling for an ASME/ANSI B18.3-compliant partially threaded socket cap screw of this size and thread specification.

Installation Notes

Installation is performed with a 9/64-inch hex key or Allen driver; ensure the driver is fully seated in the socket before applying torque to avoid stripping the recess. Always confirm the mating thread is clean and the correct 8-32 UNC specification before assembly. De-burr and clean the tapped hole as needed. When used in precision fixtures or tooling, follow applicable engineering drawings and torque requirements for the assembly.