Holo-krome 60054 Flat Socket Cap Screw 10-24 Alloy Steel

Product Description

The HOLO-KROME 60054 is a flat socket cap screw designed for flush or countersunk fastening applications in metal assemblies. It features an 82-degree flat head with a 1/8-inch hex socket drive, allowing installation with a standard hex key in tight or recessed spaces. The fastener is partially threaded with a 10-24 UNC thread at 1-1/2 inches overall length. Manufactured from alloy steel with a black oxide finish, it meets ASME B18.3 and ASTM F835 standards and carries a hardness rating of 39-44 HRC. Machinists, millwrights, and mechanical contractors install this type of fastener in production and field assembly work.

This screw is suited for applications requiring a low-profile, flush-mounted fastener in steel or cast components. The 82-degree flat head seats into a standard countersink, eliminating protrusion above the mating surface. The partial thread engages a tapped hole or nut while the unthreaded shank provides a consistent bearing surface. Typical uses include machine frames, fixtures, tooling plates, and equipment enclosures where a smooth exterior surface is required. The black oxide finish provides mild corrosion resistance and reduces light reflection in precision environments.

Key Features

• 82-degree flat head seats flush in standard countersunk holes
• 1/8-inch hex socket drive for hex key installation in confined areas
• Partially threaded shank with 10-24 UNC thread form
• Alloy steel construction with 39-44 HRC hardness rating
• Black oxide finish for mild corrosion resistance
• Meets ASME B18.3 and ASTM F835 fastener standards, Thread Fit Class 3A

Compatibility

Designed as a standard inch-series flat socket cap screw compatible with 10-24 UNC tapped holes requiring an 82-degree countersink per ASME B18.3 specifications.

Installation Notes

Installation requires a 1/8-inch hex key or hex bit driver; use a torque wrench appropriate for the joint design and material. Ensure the mating countersink is machined to the correct 82-degree angle before installing to achieve full head seating. Power down or de-energize any equipment before disassembling fastened assemblies on live systems. Follow applicable mechanical codes and engineering specifications for fastener torque requirements in structural or load-bearing joints.