Midwest Fastener 1/2-13 Serrated Lock Nut

The Midwest Fastener 1/2-13 Serrated Lock Nut is engineered to provide reliable, vibration-resistant fastening in a wide range of hardware, mechanical, and agricultural applications. The integrated serrated flange bites into the mating surface when tightened, preventing unintentional loosening caused by movement or vibration. Constructed from durable steel with a protective zinc finish, this lock nut offers enhanced resistance to rust and corrosion. It delivers long-lasting performance in demanding environments, making it an ideal choice for machinery assembly, structural connections, and everyday repair projects.