Boss Grade 7/8 Inch 9 Coarse Thread Collar Locknut L9 Heavy Duty Usa Alloy Steel Fastener Slick Yellow Cadmium Plated With Wax Tough Corrosion Resistant Bulk Pack For Trucks And Shop Projects

Heavy Duty 7/8-9 Coarse Thread Collar Locknut
✔️ Grade 9 Alloy Steel Yellow Cadmium Plated USA Hex Nut

This rugged lock nut secures truck leaf spring mounts and shop press jigs against violent vibration loss. Built as a prevailing torque fastener, it bites down hard onto mating studs while keeping heavy equipment running smooth through rocky backroads. Brought to you in convenient bulk quantities for fast garage turnarounds.

✅ Thicker body measures exactly 0.87 inches tall
✅ Nine coarse pitch matches standard grade nine bolts
✅ One point twenty nine inch wrench size fits deep sockets
✅ Slick yellow cadmium wax coat shuts out road salt
✅ Six point exterior head takes normal breaker bars

💡 How does a prevailing torque lock nut keep heavy truck trailers from shaking loose?

This handy hardware piece stays locked tight thanks to its springy outer ring biting into metal. Truck mechanics dig how quickly it holds firm without chasing down loose bolts.

- Hard stamped steel locks under max torque ratings easily
- Low profile shape slips past tight fender wells quick
- Waxed exterior finish shrugs off brake dust and mud spit
- Smart bulk ordering keeps mechanic shelves fully stocked✝️