Midwest Fastener 1/2 in.-20 Fine Top Lock Nut

The Midwest Fastener 1/2 in.-20 fine top lock nut is engineered to deliver dependable locking action in demanding mechanical and automotive fastening applications. Designed with prevailing torque top-locking features, it resists loosening caused by vibration, shock, and continuous operation. Constructed from sturdy Grade 2 steel with a corrosion-resistant zinc finish, this fastener provides lasting performance and durability across general maintenance, repair, and assembly projects.