Holo-krome 07042 Allen Nut 5/8-18 Uncoated Steel

Product Description

The HOLO-KROME 07042 is an uncoated steel Allen nut with a 5/8-18 thread size. Allen nuts, also called hex socket nuts, are tightened and loosened using a hex key rather than a standard wrench. This nut accepts a 5/8-inch hex key drive and measures 5/8 inch in diameter. The uncoated steel construction provides reliable tensile strength in mechanical and industrial fastening applications. It is a compact, single-piece fastener suited for assembly work where a recessed drive is required to clear surrounding material or achieve a flush installation profile.

This Allen nut is used in mechanical assemblies, machine frames, fixtures, and industrial equipment where a hex key drive is preferred over an external wrench engagement. The 5/8-18 thread is a fine-thread UNF specification, which provides greater thread engagement per inch compared to coarse-thread fasteners and is commonly selected where vibration resistance or precise torque control is a priority. Suitable for use by machinists, millwrights, maintenance technicians, and industrial assemblers working on equipment with space or access constraints at the fastener location.

Key Features

• 5/8-18 UNF fine-thread specification for higher thread engagement and vibration resistance
• 5/8-inch hex key drive for installation in recessed or clearance-limited locations
• Uncoated steel construction for consistent mechanical performance
• Single-piece fastener with no plating or coating that could flake or add dimensional variability
• Compact diameter suitable for flush or near-flush installation in assemblies

Compatibility

Designed as a standard UNF 5/8-18 Allen nut for use in mechanical assemblies and industrial equipment requiring hex key drive fasteners. Verify thread specification and drive size against application requirements before installation.

Installation Notes

Installation is typically performed by machinists or maintenance technicians using a calibrated hex key or Allen socket of the correct drive size. Ensure mating threads are clean and free of debris before assembly. Do not exceed recommended torque for the fastener grade and material being joined. Follow applicable mechanical assembly standards for the equipment type being serviced.