Value Collection 581270PR Hex Socket Cap Screw 8-36 Unf

Product Description

The VALUE COLLECTION 581270PR is an alloy steel hex socket cap screw designed for secure fastening in precision mechanical and industrial applications. It features an 8-36 UNF thread profile, a 5/8 inch length under head, and a 9/64 inch hex drive socket. The black oxide finish provides moderate corrosion resistance and reduces light reflection on finished assemblies. Fully threaded along its shank, this screw delivers consistent clamping force across the entire engaged length. It meets ASME/ANSI B18.3 and ASTM A574 standards, making it a recognized choice for high-strength socket cap applications across trade and industrial uses.

This screw is suited for use in tight-clearance assemblies where a low-profile socket drive is required over a standard hex head. Typical applications include machinery, fixture fabrication, equipment enclosures, and mechanical component mounting. The 8-36 UNF fine thread pitch provides greater tensile strength and better resistance to loosening under vibration compared to coarse-thread equivalents, making it appropriate for metal-to-metal fastening in precision equipment. Electricians, millwrights, HVAC technicians, and general mechanical trades routinely use this screw type in panel and component assembly work.

Key Features

• 8-36 UNF fully threaded shank for maximum thread engagement
• 9/64 inch hex socket drive for use with standard Allen or hex key tooling
• 5/8 inch length under head suits medium-depth fastening applications
• Alloy steel construction meets ASTM A574 high-strength requirements
• Black oxide coating provides mild corrosion resistance and a clean appearance
• Conforms to ASME/ANSI B18.3 socket cap screw dimensional standards

Compatibility

Designed as an OEM-style and general-use replacement hex socket cap screw for any application requiring an 8-36 UNF fully threaded alloy steel fastener with a 9/64 inch hex drive and 5/8 inch length under head.

Installation Notes

Install using a calibrated 9/64 inch hex key or Allen wrench; do not substitute an undersized key, as this will damage the socket drive. Ensure mating threads are clean and free of debris before installation. Apply thread-locking compound if vibration is a concern in the application. This fastener should be installed by a qualified technician familiar with proper torque practices for the assembly being serviced.