Midwest Fastener 1/2 in.-20 Fine Castle Hex Nut

The Midwest Fastener 1/2 in.-20 Fine Castle Hex Nut is engineered for dependable fastening in automotive, agricultural, and industrial equipment assemblies. Designed with slotted castellations, it allows positive locking when paired with a cotter pin or safety wire, preventing accidental loosening caused by extreme vibration and torque. Manufactured from Grade A steel with a protective zinc-plated finish, this hex nut offers reliable strength and enhanced resistance against rust and corrosion for demanding indoor and outdoor use.