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The VALUE COLLECTION 581251P is a hex socket cap screw designed for secure fastening in close-clearance applications where a standard hex head wrench cannot reach. This screw features an 8-32 UNC thread with a 1-1/8 inch length under the head and a 9/64 inch hex drive. It is fully threaded from tip to head, constructed from alloy steel, and finished with a black oxide coating that provides mild corrosion resistance and a low-reflective appearance. It meets ASME/ANSI B18.3 and ASTM A574 standards. Machinists, maintenance mechanics, and assembly technicians install this type of fastener in machinery, jigs, fixtures, and mechanical assemblies.
This socket cap screw is suited for precision mechanical assemblies, tooling fixtures, and general industrial fastening where a flush or recessed fastener profile is required. The 8-32 UNC thread is a fine-coarse unified thread commonly found in light machinery, enclosures, and instrumentation mounting. Full threading along the 1-1/8 inch shank length maximizes thread engagement across a range of material thicknesses.
Designed as a standard 8-32 UNC hex socket cap screw suitable for tapped holes conforming to ASME/ANSI B18.3 and ASTM A574 specifications in industrial, mechanical, and instrumentation applications.
Installation requires a 9/64 inch hex key or Allen driver. Verify that the mating tapped hole is clean and undamaged before threading to avoid cross-threading or galling. Torque to values appropriate for the fastener grade and mating material per applicable industry references. Always follow lockout/tagout procedures when servicing machinery or assemblies containing this fastener.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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