Bowmalloy 36801 Hex Lock Nut 5/8-18 Grade 9 Steel

Product Description

The BOWMALLOY 36801 is a 5/8-18 hex lock nut manufactured from Grade 9 steel with a cadmium waxed finish. Grade 9 steel provides high tensile strength suited for demanding mechanical and structural fastening applications where standard hardware would be inadequate. The cadmium finish adds corrosion resistance, and the wax coating aids in consistent torque-tension performance during installation. At 0.542 inches in height and 15/16 inches across the flats, this nut conforms to standard inch-series hex dimensions. It is installed by mechanics, millwrights, and industrial maintenance technicians working on heavy equipment, drivetrain assemblies, and high-load structural connections.

This hex lock nut is designed for fine-thread 5/8-18 applications where vibration resistance and joint integrity are critical. It is commonly used in agricultural machinery, construction equipment, heavy truck components, and industrial machinery. The right-hand thread direction is the standard orientation for the majority of mechanical fastening applications. Sold in packages of 50, it is practical for both service shops and production assembly environments requiring consistent-grade hardware.

Key Features

• Grade 9 steel construction for high-strength fastening requirements
• Cadmium waxed finish provides corrosion resistance and consistent torque characteristics
• 5/8-18 fine thread for precise clamping force in high-vibration environments
• Right-hand thread direction matches standard mechanical fastener orientation
• 15/16-inch width across flats fits standard SAE wrenches and sockets
• Package quantity of 50 suitable for shop stock and production use

Compatibility

Designed as a replacement or service hex lock nut for 5/8-18 fine-thread fastener applications requiring Grade 9 steel hardware with cadmium waxed finish.

Installation Notes

Installation should be performed by qualified mechanics or maintenance technicians following applicable fastener torque standards for Grade 9 hardware. De-energize and lock out any equipment before servicing fasteners in mechanical assemblies. Use a properly sized 15/16-inch wrench or socket to avoid rounding the flats. Do not reuse lock nuts that show signs of thread damage or deformation, as locking effectiveness may be compromised.