Value Collection 581537PS Hex Socket Cap Screw 1/2-13 Unc

Product Description

The VALUE COLLECTION 581537PS is a hex socket cap screw designed for high-strength fastening applications in industrial, mechanical, and structural assemblies. It features a 1/2-13 UNC thread size with a 3/8 inch length under the head and is fully threaded from head to tip. The screw is manufactured from alloy steel and finished with a black oxide coating that provides mild corrosion resistance and reduces light reflection. A 3/8 inch hex drive is required for installation. This fastener meets ASME/ANSI B18.3 and ASTM A574 standards, making it a recognized choice for demanding fastening tasks in fabrication, maintenance, and mechanical assembly work.

This screw is suited for use in equipment maintenance, machine assembly, tooling fixtures, and general industrial fastening where a high-strength, socket-drive cap screw is required. Its fully threaded design and black oxide finish make it appropriate for both ferrous and non-ferrous assemblies where precise clamping load is needed. Machinists, millwrights, maintenance technicians, and fabricators are the primary installers of this fastener type.

Key Features

• 1/2-13 UNC thread size for standard unified coarse thread engagement
• 3/8 inch length under head, fully threaded
• Alloy steel construction meets ASTM A574 high-strength requirements
• Black oxide finish for mild corrosion resistance and low-glare appearance
• Hex socket drive requires a 3/8 inch hex key or socket bit
• Conforms to ASME/ANSI B18.3 dimensional standards

Compatibility

Designed as a standard 1/2-13 UNC hex socket cap screw for use in any application requiring an ASME/ANSI B18.3 and ASTM A574 compliant fastener of this thread size and length.

Installation Notes

Installation requires a properly sized 3/8 inch hex key or socket drive tool. De-energize, depressurize, or otherwise make safe any equipment before fastener installation or removal. Apply thread lubricant or anti-seize compound as appropriate for the application and material pairing. Torque to values specified by the equipment manufacturer or applicable engineering standards.