Midwest Fastener 5/16-18 Serrated Lock Nut

The Midwest Fastener 5/16-18 Serrated Lock Nut is engineered for secure and reliable fastening across a wide range of hardware, automotive, and agricultural applications. Featuring integrated serrations on the bearing surface, this lock nut bites into the mating material to resist loosening caused by severe vibration, motion, and operational stress. Constructed from high-quality steel with a corrosion-resistant zinc finish, this lock nut offers enhanced durability and lasting performance in demanding indoor and outdoor environments. Its robust design ensures straightforward installation and maximum holding strength for everyday repair and assembly projects.