Value Collection 581262PR Hex Socket Cap Screw 8-32 Unc

Product Description

The VALUE COLLECTION 581262PR is a hex socket cap screw designed for fastening applications that require a low-profile, high-strength threaded connection. Featuring an 8-32 UNC thread and a 2.75-inch length under the head, this screw is partially threaded and driven with a 9/64-inch hex key. It is manufactured from alloy steel and finished with a black oxide coating that provides mild corrosion resistance and reduces surface reflectivity. This type of fastener is standard in mechanical assemblies, equipment fabrication, and industrial maintenance work performed by machinists, millwrights, and maintenance technicians.

This socket cap screw is suited for use in tight-clearance assemblies where a hex key drive is preferred over an external-drive fastener. The partial threading engages a tapped hole or nut while leaving a smooth shank section to provide shear strength and accurate alignment. Common applications include machine frames, jigs, fixtures, panel mounting, and general mechanical assembly in both production and field-service environments. It conforms to ASME/ANSI B18.3 and ASTM A574 standards, making it appropriate for engineered assemblies where dimensional and mechanical compliance is required.

Key Features

• 8-32 UNC thread size for standard inch-series tapped holes
• 2.75-inch length under head with partial threading for shear-load capability
• 9/64-inch hex socket drive for use with standard hex keys or Allen drivers
• Alloy steel construction meets ASTM A574 mechanical requirements
• Black oxide finish provides mild corrosion resistance and low-glare appearance
• Conforms to ASME/ANSI B18.3 dimensional standard

Compatibility

Designed as a standard inch-series socket cap screw for use in any application requiring an 8-32 UNC threaded fastener with a 9/64-inch hex drive, consistent with ASME/ANSI B18.3 dimensional requirements.

Installation Notes

Installation is performed with a 9/64-inch hex key or Allen-style driver. Ensure the mating tapped hole is clean and free of debris before threading the fastener. Do not overtighten, as alloy steel socket cap screws can fracture the threads in softer base materials if torque is not controlled. Follow the applicable engineering specification or fastener torque table for the material and thread class of the assembly.