Value Collection 581249PR Hex Socket Cap Screw 8-32 Unc

Product Description

The VALUE COLLECTION 581249PR is a hex socket cap screw designed for precision fastening in mechanical assemblies, tooling fixtures, and structural connections. It features an 8-32 UNC thread and a 9/16-inch length under head, making it well suited for medium-duty applications where a low-profile socket drive is required. The screw is fully threaded along its shaft and driven with a 9/64-inch hex key. Constructed from alloy steel with a black oxide finish, it provides solid mechanical strength and moderate corrosion resistance in dry or lightly oiled environments. Licensed trades and maintenance technicians working in HVAC, electrical, and mechanical systems commonly use this fastener when machine-thread engagement is required in tapped holes.

This screw is appropriate for use in residential and light commercial equipment assemblies, panel mounting, and general machine maintenance. Fully threaded along its length, it engages tapped holes completely for maximum thread contact. The black oxide coating helps reduce surface corrosion and minimizes light reflection in finished assemblies. It meets ASME/ANSI B18.3 and ASTM A574 standards, which are common requirements for structural and mechanical fastener applications across multiple trades.

Key Features

• 8-32 UNC thread for use in standard machine-tapped holes
• 9/16-inch length under head for medium-depth fastening applications
• 9/64-inch hex drive for socket key installation in tight clearances
• Fully threaded shaft for maximum thread engagement in tapped holes
• Alloy steel construction meets ASTM A574 mechanical strength requirements
• Black oxide finish provides moderate corrosion resistance and low reflectivity

Compatibility

Designed as an OEM-style replacement or service fastener for equipment and assemblies requiring 8-32 UNC machine screws with a hex socket drive and fully threaded alloy steel construction.

Installation Notes

Install using a 9/64-inch hex key or matching socket driver. Ensure the receiving hole is clean and properly tapped to 8-32 UNC specification before installation. Avoid cross-threading by starting the screw by hand before applying torque. Power down and de-energize any equipment before accessing fastener locations inside electrical or HVAC panels.