Bowmalloy 36780 Hex Lock Nut 1/4-20 Grade 9 Steel

Product Description

The BOWMALLOY 36780 is a Grade 9 steel hex lock nut in a 1/4-20 thread size with a cadmium waxed finish. It is designed to resist loosening under vibration and dynamic loads in demanding mechanical assemblies. The waxed cadmium coating provides corrosion resistance and improves installation torque consistency. With a width across flats of 7/16 inches and a height of 0.248 inches, this nut fits standard 1/4-20 fastener applications. Installers and maintenance technicians rely on this part where fastener retention and finish durability are critical.

This hex lock nut is suited for industrial, HVAC equipment, mechanical, and trade service applications where high-strength fasteners are required. The right-hand thread direction and inch measurement system make it compatible with standard U.S. fastener tooling and hardware. It is commonly used in equipment assemblies, support structures, and panel mounting where vibration or thermal cycling could compromise joint integrity.

Key Features

• Grade 9 steel construction for high tensile and proof load strength
• Cadmium waxed finish for corrosion resistance and consistent drive torque
• 1/4-20 right-hand thread for compatibility with standard U.S. fastener systems
• Width across flats of 7/16 inches fits standard 7/16-inch hex tooling
• 0.248-inch nut height suits space-constrained fastener stacks

Compatibility

Designed for use with 1/4-20 threaded fasteners in inch-measurement assemblies requiring a Grade 9 hex lock nut with a cadmium waxed finish.

Installation Notes

Installation should be performed by qualified mechanical or trade technicians using a calibrated 7/16-inch hex wrench or socket. De-energize and lock out any equipment before servicing fasteners on live assemblies. Do not reuse lock nuts that have been fully loaded and removed, as prevailing torque characteristics may be compromised. Follow applicable equipment manufacturer torque specifications when tightening.