Value Collection -36818-1 Flat Socket Cap Screw 1/4-20

Product Description

The VALUE COLLECTION -36818-1 is a flat socket cap screw designed for applications requiring a flush or countersunk head profile. It features an 82-degree flat head driven by a 5/32-inch hex socket and is manufactured from alloy steel with a black oxide finish for moderate corrosion resistance. The 1/4-20 UNC thread is partially threaded along a 2-1/4-inch overall length. This fastener meets ASME/ANSI B18.3 and ASTM F835 standards, making it appropriate for precision mechanical assemblies, machinery, and industrial fixtures where a low-profile head is required. Installation is typically performed by machinists, millwrights, or maintenance technicians.

This screw is suited for inch-system fastening applications where a countersunk socket drive is specified. The partial threading allows for improved clamping force in thicker material stacks. Sold in a package quantity of 25, this screw is appropriate for shop stock, MRO replenishment, and production environments requiring consistent UNC-standard fasteners. The black oxide finish provides a clean, non-reflective appearance and light surface protection suitable for indoor and controlled-environment use.

Key Features

• 82-degree flat head profile for flush or countersunk seating
• 5/32-inch hex socket drive for precise torque application
• 1/4-20 UNC thread standard, partially threaded for strong clamping
• Alloy steel construction for high tensile strength
• Black oxide finish for light corrosion resistance and low reflectivity
• Meets ASME/ANSI B18.3 and ASTM F835 fastener standards

Compatibility

Designed as a standard inch-system replacement or stock fastener for any application requiring a 1/4-20 UNC flat socket cap screw with an 82-degree head angle and 2-1/4-inch overall length.

Installation Notes

Installation requires a 5/32-inch hex key or socket bit. The mating material should be countersunk to an 82-degree included angle to achieve full head seating. Ensure the tapped or clearance hole is clean and free of debris before driving. Follow applicable mechanical and structural codes for fastener torque requirements based on material and joint specification.