Bowmalloy BOWMP36784 Hex Lock Nut 1/2-13 Grade 9

Product Description

The BOWMALLOY BOWMP36784 is a Grade 9 steel hex lock nut engineered for high-strength fastening applications. Sized at 1/2-13 UNC thread, it delivers the clamping force and vibration resistance required in demanding mechanical and structural assemblies. The Bowma-Guard finish provides a protective coating against corrosion, extending service life in harsh or exposed environments. At 0.437 inches tall with a 0.75-inch width across flats, it is dimensioned for standard 3/4-inch wrench drive. Licensed tradespeople and industrial maintenance techs specify Grade 9 fasteners where higher proof loads and tensile strength are necessary beyond standard Grade 5 or Grade 8 specs.

This hex lock nut is suited for heavy equipment, structural steel assemblies, agricultural machinery, and industrial maintenance work where fastener loosening under vibration or dynamic loading is a concern. The right-hand thread orientation follows standard convention, making it compatible with typical 1/2-13 UNC threaded rod, bolts, and studs. Sold in a package quantity of 25, it is practical for job-lot replenishment or multi-point installations. Mechanical contractors, millwrights, and maintenance technicians working on fabricated steel assemblies are the primary installers.

Key Features

• Grade 9 steel construction provides elevated proof load and tensile strength over Grade 5 and Grade 8 fasteners
• Bowma-Guard finish offers corrosion resistance for extended service life in exposed or harsh conditions
• 1/2-13 UNC right-hand thread for compatibility with standard American inch-series threaded fasteners
• 0.75-inch width across flats accepts standard 3/4-inch wrenches and sockets
• Hex lock nut design resists loosening under vibration and dynamic loads
• Package quantity of 25 supports multi-point fastening jobs and stock replenishment

Compatibility

Designed for use with 1/2-13 UNC threaded bolts, studs, and threaded rod in inch-series fastening applications requiring Grade 9 or equivalent high-strength hardware.

Installation Notes

Installation is performed by qualified mechanical, structural, or maintenance tradespeople using appropriate torque tools. Always consult published torque specifications for Grade 9 fasteners at the 1/2-13 thread size before final tightening. De-energize and lock out any equipment before servicing fastened assemblies per applicable OSHA lockout/tagout procedures. Do not reuse lock nuts that have been fully torqued, as locking element effectiveness may be reduced.