Holo-krome 72232 Hex Socket Cap Screw 1/2-13 Unc

Product Description

The HOLO-KROME 72232 is a fully threaded hex socket cap screw designed for high-strength fastening applications in industrial, mechanical, and trade assembly work. It features a 1/2-13 UNC thread and a 1-3/4 inch length under head, with a 3/8 inch hex drive for use with standard hex keys or socket drivers. The fastener is manufactured from alloy steel and finished with a black oxide coating, which provides mild corrosion resistance and reduces surface reflectivity. It conforms to ASME B18.3 and ASTM A574 standards, making it appropriate for demanding mechanical assemblies where tensile strength and dimensional consistency are required.

This cap screw is suited for general mechanical assembly, machine building, fixture fabrication, and structural fastening where a recessed drive is preferred over an external hex head. The 1/2-13 UNC coarse thread profile is widely used in ferrous and non-ferrous base materials across industrial and commercial applications. Plumbers, pipefitters, millwrights, and mechanical contractors commonly use alloy steel socket cap screws of this size for equipment mounting, bracket installation, and panel assembly in both new construction and maintenance work.

Key Features

• 1/2-13 UNC coarse thread for broad compatibility with standard tapped holes
• 1-3/4 inch length under head - fully threaded for maximum thread engagement
• 3/8 inch hex socket drive for use with standard hex keys and socket tooling
• Alloy steel construction meets ASTM A574 high-strength fastener requirements
• Black oxide finish provides mild corrosion resistance and low-glare surface
• Conforms to ASME B18.3 dimensional standard

Compatibility

Designed as a standard ASME B18.3 hex socket cap screw for use in any 1/2-13 UNC tapped hole requiring an ASTM A574 alloy steel fastener.

Installation Notes

Installation is performed with a 3/8 inch hex key or socket driver. Verify that the receiving tapped hole meets 1/2-13 UNC thread specification and is free of debris before installation. Follow applicable mechanical codes and equipment manufacturer torque guidelines when determining final seating torque. Always de-energize or lock out equipment before performing fastener installation or removal on live machinery.