Value Collection 36812 Flat Socket Cap Screw 1/4-20 X 1/2 in

Product Description

The VALUE COLLECTION 36812 is a flat socket cap screw designed for applications requiring a flush or countersunk fastener profile. It features an 82-degree flat head driven by a 5/32-inch hex socket and is fully threaded along its 1/2-inch overall length with a 1/4-20 UNC thread. Manufactured from alloy steel with a black oxide finish, it provides moderate corrosion resistance and a low-reflectance appearance. This screw meets ASME/ANSI B18.3 and ASTM F835 standards, making it suitable for precision mechanical assemblies where dimensional consistency is critical. Typical installers include machinists, millwrights, and field technicians working on equipment panels, brackets, and structural sub-assemblies.

This screw is used in applications where the fastener head must sit flush with or below the mating surface. Common scenarios include securing panels, guards, and mounting plates in industrial machinery, HVAC equipment enclosures, and electrical cabinets. The black oxide finish is suited for indoor or low-moisture environments where light surface protection is acceptable. Fully threaded construction ensures maximum thread engagement across the entire 1/2-inch length, which is particularly useful in thin-material assemblies.

Key Features

• 82-degree flat head profile for flush or countersunk installation
• 5/32-inch hex socket drive for precise torque application with standard Allen keys
• Fully threaded 1/2-inch length maximizes thread engagement in thin materials
• Alloy steel construction provides high tensile strength for mechanical fastening
• Black oxide finish offers mild corrosion resistance and reduced surface reflectance
• Meets ASME/ANSI B18.3 and ASTM F835 fastener standards

Compatibility

Designed as a standard 1/4-20 UNC fully threaded flat socket cap screw compatible with any tapped hole or threaded insert conforming to 1/4-20 UNC thread specifications per ASME/ANSI B18.3.

Installation Notes

Installation is typically performed by machinists or maintenance technicians using a 5/32-inch hex key or Allen driver. Countersink the mating material to match the 82-degree flat head angle before installation to achieve proper flush seating. Ensure the receiving threads are clean and free of debris before driving the screw. Apply thread-locking compound if vibration is anticipated in the application.