Holo-krome 72272 Hex Socket Cap Screw 5/8-11 Unc Alloy Steel

Product Description

The HOLO-KROME 72272 is a hex socket cap screw designed for high-strength fastening applications in mechanical, industrial, and trade service work. It features a 5/8-11 UNC thread size with a 2-inch length under head and is fully threaded along its entire shaft. The drive type is hex socket, accepting a 1/2-inch hex key. Manufactured from alloy steel with a black oxide coating, this fastener delivers strong clamping force and moderate corrosion resistance. It meets ASME B18.3 and ASTM A574 standards, making it suitable for demanding structural and mechanical assembly applications.

This screw is used in general mechanical assembly, machinery maintenance, and structural fastening where a recessed drive is required for flush or countersunk installation. The 5/8-11 UNC thread is a coarse-pitch standard widely used in North American industrial equipment. The black oxide finish reduces surface reflectivity and provides light corrosion protection in dry or lightly oiled environments. It is installed by licensed mechanics, millwrights, pipefitters, and maintenance technicians across commercial and industrial settings.

Key Features

• 5/8-11 UNC coarse thread for reliable engagement in standard tapped holes
• Fully threaded shaft provides maximum thread engagement over the 2-inch length under head
• 1/2-inch hex socket drive for use with standard hex keys or Allen drivers
• Alloy steel construction meets ASTM A574 high-strength fastener requirements
• Black oxide coating provides light corrosion resistance and reduces surface glare
• Conforms to ASME B18.3 dimensional standards for socket cap screws

Compatibility

Designed as an OEM-style replacement or direct-fit fastener for any application requiring a 5/8-11 UNC hex socket cap screw conforming to ASME B18.3 and ASTM A574 specifications.

Installation Notes

Install using a 1/2-inch hex key or socket driver. Ensure the mating tapped hole is clean and free of debris before threading. Power down or de-energize any equipment before performing fastener service on live assemblies. Follow applicable industry torque guidelines for 5/8-11 alloy steel cap screws and do not exceed rated clamp load.