Value Collection 581023PR Hex Socket Cap Screw 1-64 Unc

Product Description

The VALUE COLLECTION 581023PR is a hex socket cap screw designed for precision fastening in tight-clearance applications. Built from alloy steel with a black oxide finish, this screw measures 1/2 inch in length under the head and is fully threaded along its entire shank. The 1-64 UNC thread designation makes it one of the finer thread pitches in the inch-series, suited for small, high-strength fastening needs. A 5/64 inch hex drive accepts a standard Allen wrench or hex key. This fastener meets ASME/ANSI B18.3 and ASTM A574 standards, confirming dimensional and mechanical compliance for demanding assemblies.

This cap screw is commonly used in light mechanical assemblies, instrumentation, precision machine components, and electronics hardware where a flush or recessed drive is required. The small thread size and full threading make it well suited for thin material applications and threaded inserts. Maintenance technicians, machinists, and assembly professionals working on small-scale mechanical systems will find this fastener appropriate for fine-thread tapped holes requiring controlled torque and a low-profile head profile.

Key Features

• Thread size 1-64 UNC for fine-pitch, high-precision fastening
• Fully threaded shank for maximum thread engagement in shallow or thin materials
• Alloy steel construction provides higher strength than standard carbon steel fasteners
• Black oxide finish offers mild corrosion resistance and reduces light reflection in optical or instrument assemblies
• 5/64 inch hex socket drive accepts standard hex keys and Allen wrenches
• Meets ASME/ANSI B18.3 and ASTM A574 standards for dimensional and mechanical performance

Compatibility

Designed as an OEM-style replacement or standard-stock hex socket cap screw for any application requiring a 1-64 UNC fully threaded fastener with a 5/64 inch hex drive and 1/2 inch length under head.

Installation Notes

Installation is typically performed by machinists or assembly technicians using a 5/64 inch hex key or Allen wrench. Ensure the receiving tapped hole is clean, properly threaded to 1-64 UNC, and free of debris before driving the screw. Avoid over-torquing, as the small thread diameter increases the risk of thread stripping in softer base materials. Power down or de-energize any equipment before fastener service when working on or near electrical or mechanical assemblies.