Value Collection R63084886 Heavy Hex Nut 5/8-11 Unc

Product Description

The VALUE COLLECTION R63084886 is a heavy hex nut in 5/8-11 UNC thread size, manufactured from 18-8 stainless steel with a bright uncoated finish. Heavy hex nuts are dimensionally larger across the flats than standard hex nuts, providing a greater bearing surface and added resistance to loosening under load. The 18-8 stainless steel construction offers solid corrosion resistance in wet, chemical-exposure, and outdoor environments. This nut features right-hand threading to match standard UNC fastener systems. It is installed by maintenance technicians, pipefitters, millwrights, and general tradespeople wherever a heavy-duty stainless threaded connection is required.

This heavy hex nut is suited for structural, mechanical, and process-piping applications where standard hex nuts are insufficient due to load or vibration demands. Common install scenarios include industrial equipment mounting, pipe flange bolting, and outdoor structural assemblies. The 18-8 alloy grade makes it a practical choice for food service, marine-adjacent, and chemical processing environments where carbon steel fasteners are not appropriate. Minimum order quantity is 10 pieces.

Key Features

• 18-8 stainless steel construction resists corrosion in wet and chemically active environments
• Heavy hex profile with 1.0625-inch width across flats provides increased bearing surface versus standard hex
• 5/8-11 UNC right-hand thread for compatibility with standard unified coarse fastener systems
• Bright uncoated finish suitable for direct use without additional surface preparation
• Does not meet military specifications — intended for commercial and industrial applications

Compatibility

Designed to mate with 5/8-11 UNC threaded bolts, studs, and threaded rod in commercial and industrial fastener applications requiring a heavy hex profile.

Installation Notes

Installation requires a standard 1-1/16-inch wrench or socket. Power down or de-energize any equipment before fastener service where applicable. Apply appropriate thread lubricant or anti-seize compound when using stainless fasteners to minimize galling during installation. Follow applicable mechanical or structural codes for torque requirements specific to the joint design.