Holo-krome 73114 Hex Socket Cap Screw 3/8-24 Unf 2 in

Product Description

The HOLO-KROME 73114 is a hex socket cap screw designed for high-strength fastening applications requiring precise torque control and a compact drive profile. Manufactured from alloy steel with a black oxide finish, it carries a 3/8-24 UNF thread and measures 2 inches in length under the head. The 5/16-inch hex drive accepts a standard Allen-type hex key or hex bit driver. This partially threaded fastener meets ASME B18.3 and ASTM A574 standards, making it a code-compliant choice for mechanical assemblies, equipment mounting, and structural fastening tasks performed by machinists, maintenance technicians, and mechanical contractors.

The 73114 suits applications where a recessed drive head is needed to sit flush or below a surface, avoiding interference with mating components. Its fine UNF thread pitch provides tighter thread engagement and greater resistance to loosening under vibration compared to coarse-thread equivalents. Typical install environments include industrial machinery, HVAC equipment frames, pump and motor mounting assemblies, and general mechanical fabrication where alloy steel strength and a clean black oxide appearance are required.

Key Features

• 3/8-24 UNF fine thread for high clamp load and vibration resistance
• 2-inch length under head with partial threading for precise engagement depth
• 5/16-inch hex socket drive accepts standard Allen keys and hex bit drivers
• Alloy steel construction meets ASTM A574 high-strength fastener requirements
• Black oxide finish provides mild corrosion resistance and reduces light reflection
• Conforms to ASME B18.3 dimensional standards for socket cap screws

Compatibility

Designed as a standard ASME B18.3 hex socket cap screw suitable for any application requiring a 3/8-24 UNF partially threaded fastener with a 5/16-inch hex drive and 2-inch length under head.

Installation Notes

Installation is performed with a 5/16-inch hex key or hex bit rated for the torque requirements of the assembly. Ensure mating threads are clean and free of debris before installation. Follow applicable torque specifications from the equipment manufacturer or relevant ASME standards for alloy steel fasteners of this grade. Avoid impact driving, which can damage the hex socket or distort the thread form.