Value Collection 581040PR Hex Socket Cap Screw 2-56 Unc

Product Description

The VALUE COLLECTION 581040PR is a hex socket cap screw designed for precision fastening applications requiring a compact, high-strength connection. Manufactured from alloy steel with a black oxide finish, this fastener meets ASME/ANSI B18.3 and ASTM A574 standards. It features a 2-56 UNC thread size, a 7/32 inch length under head, and a 5/64 inch hex drive. The fully threaded shank provides maximum thread engagement along the entire fastener length. Maintenance technicians, machinists, and assembly professionals install this type of screw where a flush or recessed head profile and socket drive access are required in tight clearance situations.

This screw is suited for light-duty mechanical assemblies, instrument panels, electronic enclosures, and precision equipment where a small-diameter, fine-thread fastener is specified. The 2-56 UNC designation places it in the finer end of the unified inch coarse series, making it appropriate for thin-material applications and components where thread stripping risk must be minimized. It is sold in minimum order quantities of 100 pieces per the supplier specification.

Key Features

• Alloy steel construction meets ASTM A574 mechanical requirements for socket cap screws
• Black oxide coating provides mild corrosion resistance and reduces light reflection
• Fully threaded shank maximizes thread engagement for the 7/32 inch body length
• 5/64 inch hex drive accepts standard hex keys and socket bits
• Conforms to ASME/ANSI B18.3 dimensional standards for socket head cap screws
• 2-56 UNC thread form compatible with standard unified inch tapped holes

Compatibility

Designed as a standard ASME/ANSI B18.3 hex socket cap screw for use in any application specifying a 2-56 UNC fully threaded socket head cap screw with a 7/32 inch length under head.

Installation Notes

Install using a calibrated 5/64 inch hex key or T-handle driver; do not substitute an undersized key as this risks rounding the drive recess. Verify the mating tapped hole is clean and dimensionally correct for 2-56 UNC thread form before installation. De-energize and de-pressurize any assembly before servicing fasteners on live mechanical or electrical equipment. Follow applicable torque guidance from the equipment manufacturer or relevant industry standards for the 2-56 size class.