Value Collection 721268BR Flat Socket Cap Screw 5/8-11 X 5 in

Product Description

The VALUE COLLECTION 721268BR is a flat socket cap screw designed for flush or countersunk fastening applications in metalworking, fabrication, and industrial assembly. It features an 82-degree flat head with a 3/8-inch hex socket drive, allowing installation with a standard hex key. The screw is partially threaded, measures 5 inches in overall length, and carries a 5/8-11 UNC thread size. Made from alloy steel with a black oxide finish, it offers solid mechanical strength and moderate corrosion resistance in controlled environments. Licensed trades and industrial maintenance technicians are the primary installers of this fastener type.

This screw is suited for applications where the fastener head must sit flush with or below the surface of the mating material. Typical use cases include machine frames, fixtures, tooling plates, and structural assemblies where a low-profile head is required. The 5/8-11 UNC thread pattern is a common coarse-thread specification used widely in inch-system mechanical assemblies. The partial threading is appropriate for clamping applications where an unthreaded shank provides a bearing surface between joined components.

Key Features

• 82-degree flat head seats flush in standard countersunk holes
• 3/8-inch hex socket drive for precise torque application with a hex key
• 5/8-11 UNC coarse thread for broad compatibility with inch-system hardware
• Partially threaded shank provides a clamping bearing surface
• Alloy steel construction delivers high tensile and shear strength
• Black oxide finish reduces surface reflectivity and provides mild corrosion resistance

Compatibility

Meets ASME/ANSI B18.3 and ASTM F835 fastener standards. Designed as an OEM-style replacement or direct-fit fastener for inch-system assemblies requiring a 5/8-11 UNC flat socket cap screw.

Installation Notes

Installation is typically performed by machinists, millwrights, or maintenance technicians using a calibrated hex key or socket driver sized to the 3/8-inch drive. The mating countersink should be machined to an 82-degree included angle to ensure full head seating. De-energize all equipment and relieve any stored mechanical energy before disassembling or reassembling fastened joints. Follow applicable torque specifications from the equipment manufacturer or relevant ASME fastener standards.