Midwest Fastener 5/16 in.-18 x 4 in. Square Head Bolt

The Midwest Fastener 5/16 in.-18 x 4 in. Square Head Bolt provides secure fastening and dependable performance for a variety of general repair, construction, and equipment assembly tasks. Built from high-quality steel with a zinc finish, it delivers added resistance against corrosion and wear in indoor and outdoor settings. Featuring a square head design, this Grade 2 fastener offers an expanded gripping surface that allows for positive engagement and easy tightening using standard wrenches. The coarse thread configuration ensures smooth installation and consistent holding strength in demanding fastening applications.