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The BOWMALLOY BOW36783 is a 7/16-14 hex lock nut manufactured from Grade 9 steel with a Bowma-Guard cadmium waxed finish. It is designed to resist loosening under vibration and dynamic loads, making it a reliable fastener choice in demanding mechanical assemblies. The nut measures 3/8 inches in height and 11/16 inches across the flats, with right-hand threading conforming to inch measurement standards. Licensed mechanics, millwrights, HVAC technicians, and plumbers reach for this grade when standard hex nuts are insufficient for the application. The Bowma-Guard finish provides corrosion resistance in environments where moisture or chemical exposure is a concern.
This hex lock nut is suited for industrial, commercial, and heavy-duty mechanical applications where high-strength fastening is required. It is commonly installed in equipment assemblies, structural connections, and service panels where vibration could compromise a standard nut. The 7/16-14 thread size is a frequently encountered fastener dimension across HVAC equipment frames, piping supports, and mechanical enclosures. Package quantity is 50 pieces per unit, making it practical for service vehicles and shop stock.
Designed for use with 7/16-14 inch-standard threaded fastener assemblies requiring a Grade 9 hex lock nut with right-hand thread direction.
Installation should be performed by qualified mechanics or tradespeople using appropriately sized hand or power tools rated for the fastener grade. De-energize or depressurize any system before replacing or adding fasteners in live assemblies. Do not exceed rated torque ranges for Grade 9 hardware as specified by the equipment manufacturer or applicable standards. Inspect threads for damage or contamination before installation to ensure proper seating and locking function.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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