Holo-krome 60112 Flat Socket Cap Screw 3/8-16 Alloy Steel

Product Description

The HOLO-KROME 60112 is a flat socket cap screw designed for countersunk fastening applications in metal fabrication, machinery, and structural assemblies. It features a 82-degree flat head with a 7/32-inch hex socket drive and a 3/8-16 UNC thread in a 2-1/2-inch overall length. The screw is partially threaded and manufactured from alloy steel with a black oxide finish, giving it a hardness rating of 39 to 44 HRC. It meets ASME B18.3 and ASTM F835 fastener standards. Machinists, maintenance technicians, and fabricators install this fastener where a flush or recessed head profile is required.

This screw is suited for applications requiring a flush surface finish, including jig and fixture assemblies, machine guarding, tooling plates, and general industrial metalwork. The 3/8-16 UNC thread class 3A fit provides a controlled tolerance suitable for precision or load-bearing connections. The black oxide finish offers mild corrosion resistance in low-moisture environments and is commonly used in indoor industrial settings. The partial threading allows the unthreaded shank to act as a shoulder or alignment feature in through-hole applications.

Key Features

• 82-degree flat head profile for countersunk, flush-mount installations
• 7/32-inch hex socket drive compatible with standard hex keys and socket drivers
• Alloy steel construction with 39 to 44 HRC hardness for high-strength fastening
• Black oxide finish provides mild corrosion resistance in dry indoor environments
• Partially threaded shank for shoulder or alignment use in through-hole assemblies
• Meets ASME B18.3 and ASTM F835 fastener standards

Compatibility

Designed as an OEM-style replacement or standard-production flat socket cap screw for 3/8-16 UNC countersunk fastener applications in industrial machinery, fabrication fixtures, and tooling assemblies.

Installation Notes

Installation is typically performed by machinists or maintenance technicians using a 7/32-inch hex key or socket driver. Countersink the mating hole to 82 degrees to achieve proper head seating and flush surface. Ensure mating threads are clean and free of debris before driving. Do not exceed the fastener torque capacity appropriate for 3/8-16 alloy steel screws as specified in the applicable engineering or maintenance documentation.