Value Collection 721139PR Flat Socket Cap Screw 10-32 X 3 in

Product Description

The VALUE COLLECTION 721139PR is a flat socket cap screw designed for flush or countersunk fastening applications in precision assemblies. It features an 82-degree flat head with a 1/8-inch hex socket drive and is manufactured from alloy steel with a black oxide finish for corrosion resistance in moderate environments. The screw is partially threaded with a 10-32 UNF thread size and an overall length of 3 inches. This fastener meets ASME/ANSI B18.3 and ASTM F835 standards, making it appropriate for use in mechanical, industrial, and equipment maintenance applications where consistent dimensional accuracy is required.

This screw is suited for residential and commercial equipment assemblies, machinery, and fabrication work where a flush-mount fastener is needed. The 10-32 UNF thread is a fine-pitch unified national thread commonly used in instrument panels, enclosures, and light structural assemblies. The black oxide finish blends into dark metal surfaces and provides mild rust inhibition. Licensed tradespeople and machinists working on mechanical assemblies and panel hardware are the primary installers of this fastener type.

Key Features

• 82-degree flat head profile for flush or countersunk seating
• 1/8-inch hex socket drive for precise torque application with Allen-type tools
• 10-32 UNF partially threaded shank for secure clamping in through-hole applications
• Alloy steel construction for tensile strength in demanding fastening environments
• Black oxide finish provides mild corrosion resistance and low-glare appearance
• Meets ASME/ANSI B18.3 and ASTM F835 dimensional and mechanical standards

Compatibility

Designed as an OEM-style replacement or standard-fit fastener for assemblies requiring a 10-32 UNF flat socket cap screw with an overall length of 3 inches and an 82-degree countersink angle.

Installation Notes

Install using a 1/8-inch hex key or Allen driver; confirm the mating countersink is machined to 82 degrees for proper head seating. Partially threaded screws require adequate thread engagement in the receiving material — verify thread depth before installation. Power down and de-energize any electrical or mechanical equipment before accessing fastener locations on live systems. Follow applicable ASME or facility torque guidelines for 10-32 fasteners in the material type being used.