Midwest Fastener 5/16 in.-18 Slotted Hex Nut

The Midwest Fastener 5/16 in.-18 Slotted Hex Nut is engineered for dependable fastening in demanding mechanical and automotive applications. Designed with slots cut into the top, it allows the insertion of a cotter pin or safety wire through a drilled bolt to prevent loosening caused by severe vibration. Constructed from high-quality Grade A steel and coated with a protective zinc finish, this slotted hex nut delivers reliable strength and superior corrosion resistance. It features standard coarse threads for smooth and secure installation.