Value Collection 211109P Flat Socket Cap Screw 1/4-20

Product Description

The VALUE COLLECTION 211109P is a flat socket cap screw designed for applications requiring a flush or countersunk fastener profile. The 82-degree flat head seats fully into a matching countersunk hole, leaving a smooth surface when installed. Driven by a 5/32-inch hex socket key, this screw is manufactured from alloy steel with a black oxide finish that provides moderate corrosion resistance and reduces light reflection. The 1/4-20 UNC thread runs the full length of the 3/4-inch shank. Mechanical contractors, millwrights, and maintenance technicians commonly install this fastener in equipment assemblies, fixtures, and structural hardware where a low-profile head is required.

This fastener is suited for general industrial and mechanical assembly work where a flush-mount socket screw is specified. The fully threaded shank provides maximum thread engagement in thinner materials. The black oxide finish makes it a common choice in applications where a dark, low-glare appearance is preferred alongside moderate surface protection. It is installed with a standard 5/32-inch hex key or Allen driver and is compatible with standard UNC 1/4-20 tapped holes.

Key Features

• 82-degree flat head profile for flush countersunk installation
• 5/32-inch hex socket drive for precise torque application
• Fully threaded 3/4-inch overall length for maximum thread engagement
• Alloy steel construction for high tensile strength
• Black oxide finish for moderate corrosion resistance and low-glare appearance
• Conforms to ASME/ANSI B18.3 and ASTM F835 fastener standards

Compatibility

Designed as a standard UNC replacement or specification fastener for any application requiring a 1/4-20 x 3/4-inch flat socket cap screw with an 82-degree countersink angle.

Installation Notes

Install using a 5/32-inch hex key or matching Allen driver. Ensure the mating countersink is machined to an 82-degree angle to achieve full head seating. Verify thread engagement depth meets the requirements of the application before final torque. Inspect the countersunk hole for burrs or debris that may prevent full seating of the flat head.