Value Collection 721050PR Flat Socket Cap Screw 5-40

Product Description

The VALUE COLLECTION 721050PR is a flat socket cap screw designed for precision fastening in close-clearance and flush-mount applications. It features an 82-degree flat head with a 5/64-inch hex socket drive, and is sized at 5-40 UNC thread with an overall length of 1-1/4 inches. The screw is partially threaded and manufactured from alloy steel with a black oxide finish for improved corrosion resistance and reduced light reflection. Machinists, tool-and-die technicians, and assembly technicians typically install this fastener in machine components, jigs, fixtures, and precision assemblies where a countersunk, low-profile head is required.

This flat socket cap screw is suited for light-duty machine assembly and precision equipment applications where the fastener head must sit flush with or below the mating surface. The 5-40 UNC thread size targets fine-tolerance applications common in instrumentation, small mechanical assemblies, and tooling. The black oxide finish is standard in shop environments where a non-reflective, low-glare surface is preferred. Sold individually, with a minimum order quantity of 10 units.

Key Features

• 82-degree flat head profile for flush and countersunk installations
• 5/64-inch hex socket drive for precise torque application in tight spaces
• 5-40 UNC thread standard for fine-tolerance mechanical assemblies
• Partially threaded shank for controlled engagement depth
• Alloy steel construction for strength in demanding fastening applications
• Black oxide finish reduces surface glare and provides mild corrosion resistance

Compatibility

Designed as an OEM-style replacement or standard-service fastener for any assembly requiring a 5-40 UNC flat socket cap screw conforming to ASME/ANSI B18.3 and ASTM F835 standards.

Installation Notes

Installation requires a 5/64-inch hex key or ball-end driver. Power down or de-energize any equipment before performing fastener service on live assemblies. Ensure the receiving hole is properly countersunk to 82 degrees to achieve a true flush-mount seating. Follow applicable machine-assembly standards and torque guidelines for the 5-40 thread class when specified by the equipment manufacturer.