Bowmalloy BOWMP36780 Hex Lock Nut 1/4-20 Grade 9

Product Description

The BOWMALLOY BOWMP36780 is a Grade 9 steel hex lock nut designed for high-strength fastening applications where vibration resistance and structural integrity are critical. Sized for 1/4-20 inch thread, it measures 0.4375 inches (7/16 inches) across the flats and 0.240 inches in height. The Bowma-Guard finish provides corrosion resistance suited to demanding service environments. This nut is installed by licensed tradespeople and maintenance professionals working in HVAC, plumbing, electrical, and general mechanical assembly where a reliable, locking threaded fastener is required.

The BOWMP36780 hex lock nut is appropriate for both residential and commercial trade applications. It is commonly used in equipment mounting, mechanical assemblies, and structural connections where standard hex nuts may loosen due to vibration or thermal cycling. The right-hand thread direction conforms to standard inch-series fastener practice, making it a straightforward fit for typical 1/4-20 threaded rod and bolt installations across a wide range of trade and industrial service scenarios.

Key Features

• Grade 9 steel construction for high tensile and proof-load strength
• Bowma-Guard finish for enhanced corrosion resistance in service environments
• 1/4-20 thread size in the standard inch measurement system
• 7/16 inches (0.4375 inches) width across flats for use with standard wrenches
• Right-hand thread direction per standard inch-series fastener convention
• Locking design resists loosening under vibration and dynamic loads

Compatibility

Designed for use with standard 1/4-20 inch-series threaded bolts and rods in trade and mechanical assembly applications.

Installation Notes

Installation of hex lock nuts should be performed with the appropriate wrench or socket sized to the 7/16-inch flats. Always de-energize or depressurize any system before accessing fastened assemblies. Torque to the equipment manufacturer's specification for the fastener grade and joint material. Reuse of lock nuts is not recommended where a prevailing-torque locking feature is required, as the locking element may weaken after removal.