Value Collection 721282BR Flat Socket Cap Screw 5/8-18

Product Description

The VALUE COLLECTION 721282BR is a flat socket cap screw designed for flush or countersunk fastening applications in metal fabrication, machine assembly, and structural work. It features an 82-degree flat head with a 3/8-inch hex socket drive, and is fully threaded along its 3-inch overall length. The 5/8-18 UNF thread specification suits fine-thread applications where vibration resistance or precise clamping force is required. Manufactured from alloy steel with a black oxide finish, this screw delivers solid mechanical strength with moderate corrosion resistance in protected environments. Installation is handled by machinists, millwrights, and general maintenance technicians.

This flat socket cap screw is suited for use in machine frames, fixtures, jigs, and assemblies where a low-profile head is required to sit flush with or below the mating surface. The fully threaded design maximizes thread engagement across the full 3-inch length, making it appropriate for through-hole applications or deep-threaded blind holes. The black oxide finish reduces light reflection and provides mild surface protection, a common requirement in industrial and tooling environments.

Key Features

• 82-degree flat head profile for flush countersunk installation
• 3/8-inch hex socket drive for high-torque engagement with a standard Allen key or hex bit
• Fully threaded 3-inch overall length for maximum thread engagement
• 5/8-18 UNF fine thread for vibration-resistant clamping
• Alloy steel construction meets ASME/ANSI B18.3 and ASTM F835 standards
• Black oxide finish for moderate corrosion resistance and low reflectivity

Compatibility

Designed as a standard-dimension replacement or stock fastener for any application requiring an 82-degree flat socket cap screw in 5/8-18 UNF thread per ASME/ANSI B18.3 and ASTM F835.

Installation Notes

Installation is typically performed by machinists or maintenance technicians using a 3/8-inch hex key or hex drive bit. Ensure the mating countersink is machined to an 82-degree included angle for proper head seating. De-energize or lock out any equipment before fastener removal or installation per applicable OSHA lockout/tagout procedures. Do not reuse fasteners that show signs of galling, thread damage, or corrosion.