Value Collection 581026PR Hex Socket Cap Screw 1-64 Unc

Product Description

The VALUE COLLECTION 581026PR is a hex socket cap screw engineered for precision fastening applications that demand reliable clamping force in tight spaces. It features a 1-64 UNC thread size with a 1-inch length under head and is driven by a 5/64-inch hex key. Manufactured from alloy steel with a black oxide coating, this partially threaded cap screw meets the dimensional and mechanical requirements of ASME/ANSI B18.3 and ASTM A574. The black oxide finish provides a moderate level of corrosion resistance while maintaining close dimensional tolerances. Machinists, millwrights, and maintenance technicians use this fastener where a low-profile, high-strength socket drive screw is required.

This cap screw is suited for light-duty mechanical assemblies, instrument panels, jigs, fixtures, and precision machine components where a #1-64 UNC thread engagement is called out. The 5/64-inch hex drive socket allows installation in confined locations where standard wrenches cannot reach. Partial threading ensures proper clamping across the joint rather than full-thread engagement, which is standard practice for cap screws of this design. The alloy steel construction provides tensile strength consistent with ASTM A574 grade requirements, making it appropriate for demanding mechanical environments.

Key Features

• 1-64 UNC thread form per ASME/ANSI B18.3 and ASTM A574 standards
• 1-inch length under head for proper grip engagement in assembled joints
• 5/64-inch hex socket drive for installation in confined spaces
• Partially threaded shank design for standard cap screw clamping behavior
• Alloy steel construction with black oxide coating for corrosion resistance

Compatibility

Designed as a standard-dimension hex socket cap screw for use in any mechanical assembly specifying a 1-64 UNC partially threaded socket cap screw per ASME/ANSI B18.3.

Installation Notes

Installation requires a calibrated 5/64-inch hex key or T-handle driver; use of an incorrect drive size risks rounding the socket recess. Ensure the mating tapped hole meets 1-64 UNC thread specifications before installation. Apply appropriate thread lubricant or threadlocker as called out in the assembly specification. Follow all applicable mechanical and safety standards for the equipment being serviced.