Value Collection 581343PR Hex Socket Cap Screw 12-24 Unc

Product Description

The VALUE COLLECTION 581343PR is a partially threaded hex socket cap screw designed for high-strength mechanical fastening applications. It features a 12-24 UNC thread size and measures 1-3/4 inches in length under the head. The drive is a 5/32-inch internal hex (Allen) socket. Constructed from alloy steel with a black oxide finish, this fastener delivers solid corrosion resistance and a consistent surface hardness suited to demanding assembly work. It meets ASME/ANSI B18.3 and ASTM A574 standards, confirming tensile and dimensional compliance for precision mechanical assemblies. Machinists, maintenance technicians, and industrial assemblers commonly install this type of fastener.

This screw is well suited for machine component assemblies, jigs, fixtures, and general industrial applications where a low-profile, high-strength socket cap fastener is required. The partial thread design concentrates clamping force and allows use in blind or through-hole configurations where full engagement at the head is needed. The black oxide finish is appropriate for indoor or lightly controlled environments where modest surface protection is acceptable.

Key Features

• 12-24 UNC thread size for fine-pitch engagement in machine assemblies
• 1-3/4 inch length under head with partial threading for controlled clamping
• 5/32-inch internal hex drive for use with standard Allen or hex-key tooling
• Alloy steel construction meets ASTM A574 high-strength socket screw requirements
• Black oxide finish provides mild corrosion resistance and reduces light reflection
• Conforms to ASME/ANSI B18.3 dimensional standards

Compatibility

Designed as a standard ASME/ANSI B18.3 hex socket cap screw suitable for 12-24 UNC tapped holes in general industrial, mechanical, and machine assembly applications.

Installation Notes

Install with a calibrated 5/32-inch hex key or Allen driver; do not use worn or undersized keys as they can round the socket drive. Ensure the tapped hole is clean and free of debris before installation. Follow applicable torque guidelines from ASME or the equipment manufacturer for 12-24 alloy steel fasteners. Verify partial thread engagement depth meets design requirements before final assembly.