Holo-krome 73092 Hex Socket Cap Screw 5/16-24 Unf Alloy Steel

Product Description

The HOLO-KROME 73092 is a hex socket cap screw designed for high-strength fastening applications requiring precise torque and a clean, recessed drive. It features a 5/16-24 UNF thread size with a 2-inch length under the head and is partially threaded for applications where a grip length is needed. The 1/4-inch hex drive accepts a standard hex key or Allen driver. Manufactured from alloy steel with a black oxide finish, this screw delivers corrosion resistance and surface hardness suited to industrial and mechanical assembly work. It meets ASME B18.3 and ASTM A574 standards.

This fastener is used in general mechanical assembly, machinery, tooling fixtures, and equipment maintenance applications where a flush or low-profile cap screw is required. The partial thread design is appropriate when clamping force needs to be concentrated at the shank rather than the threaded section. Machinists, millwrights, and maintenance technicians typically install this screw in metal-to-metal joints where a hex socket drive is preferred for torque control and access in tight spaces.

Key Features

• 5/16-24 UNF thread for fine-pitch engagement and vibration resistance
• 2-inch length under head with partial threading for shank grip
• 1/4-inch hex socket drive for standard Allen key or hex bit installation
• Alloy steel construction meets ASTM A574 mechanical requirements
• Black oxide finish provides mild corrosion resistance and reduced light reflection
• Conforms to ASME B18.3 dimensional standards

Compatibility

Designed as a standard ASME B18.3 hex socket cap screw suitable for tapped holes accepting 5/16-24 UNF threads in metal assemblies, machinery frames, and tooling fixtures.

Installation Notes

Installation is performed by machinists, millwrights, or maintenance technicians using a 1/4-inch hex key or socket bit driver. Ensure the mating tapped hole is clean and free of debris before driving the screw. Do not exceed the rated torque for the thread size and material class, and verify thread engagement depth meets application requirements before final assembly.