Value Collection 36862 Flat Socket Cap Screw 1/2-13 X 3 in

Product Description

The VALUE COLLECTION 36862 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 5/16-inch hex socket and is partially threaded with a 1/2-13 UNC thread form over a 3-inch overall length. The screw is machined from alloy steel and finished with black oxide for moderate corrosion resistance and reduced light reflection. It meets ASME/ANSI B18.3 and ASTM F835 standards. Sold in a package of 10, this fastener is suited for mechanical assemblies, fixtures, and structural connections where a low-profile head is required.

This flat socket cap screw is used in industrial, commercial, and mechanical maintenance applications where the fastener must sit flush with or below the mating surface. The partially threaded shank provides a stronger grip interface in thick material joints. Typical installation scenarios include machine frames, brackets, jigs, and equipment housings. The hex socket drive allows torque application in tight clearance areas where a standard wrench cannot reach. Alloy steel construction supports high-strength fastening requirements across a range of trade and manufacturing environments.

Key Features

• 82-degree flat head profile for flush or countersunk seating
• 5/16-inch hex socket drive for use with standard Allen keys or hex bit drivers
• 1/2-13 UNC thread form, partially threaded, 3-inch overall length
• Alloy steel construction for high tensile strength
• Black oxide finish provides mild corrosion resistance and low-glare surface
• Meets ASME/ANSI B18.3 and ASTM F835 fastener standards

Compatibility

Designed as a standard UNC replacement or new-installation flat socket cap screw for any application specifying a 1/2-13 x 3-inch partially threaded 82-degree flat head fastener per ASME/ANSI B18.3 and ASTM F835.

Installation Notes

Installation is typically performed by maintenance technicians, millwrights, or mechanical contractors using a 5/16-inch hex key or socket bit driver. Ensure the mating countersink is machined to an 82-degree included angle to achieve full head seating. Verify thread engagement depth and torque to the specification required by the assembly drawing or applicable fastener standard. Do not install into a tapped hole without confirming thread class compatibility.