Value Collection R57500132 Acorn Nut 5/8-18 Unf

Product Description

The VALUE COLLECTION R57500132 is a standard acorn nut machined from 18-8 stainless steel, designed to cap and protect exposed threaded fastener ends while providing a clean, finished appearance. With a 5/8-18 UNF right-hand thread and a 9/16 inch width across flats, this nut is sized for use with a standard wrench in light industrial, plumbing, HVAC, and mechanical assembly applications. The 18-8 stainless steel construction provides solid corrosion resistance in mildly corrosive or wet environments. The uncoated silver finish maintains the natural stainless surface without added platings or coatings.

This acorn nut is suited for residential and commercial applications where a threaded stud or bolt end needs to be covered and protected from debris, moisture, or contact damage. Common install scenarios include equipment panels, pipe flange assemblies, HVAC enclosures, and general mechanical fastening tasks where thread protection and a finished look are required. The 17/32 inch overall height accommodates standard thread engagement depth for 5/8-18 UNF fasteners.

Key Features

• 18-8 stainless steel construction for corrosion resistance in wet and mildly corrosive environments
• 5/8-18 UNF right-hand thread for compatibility with standard unified fine-thread fasteners
• 9/16 inch width across flats accepts standard hex wrench or socket tools
• 17/32 inch overall height provides adequate thread coverage and protection
• Uncoated silver finish maintains natural stainless surface integrity
• Standard acorn dome profile caps and protects exposed thread ends

Compatibility

Designed as a standard replacement or new-installation acorn nut for 5/8-18 UNF threaded bolts and studs in general mechanical, plumbing, HVAC, and light industrial assembly applications.

Installation Notes

Installation is performed by hand-threading onto a compatible 5/8-18 UNF stud or bolt, then tightening with a standard 9/16 inch hex wrench or socket. Ensure the mating thread is clean and free of damage before installation to avoid cross-threading. Do not overtighten, as acorn nuts have a closed dome end that limits thread engagement depth. De-energize or shut off any associated equipment before working on fastened assemblies in live systems.