Midwest Fastener 5/16-18 x 3 in. Square Head Bolt

The Midwest Fastener 5/16-18 x 3 in. Square Head Bolt is engineered for secure fastening in heavy-duty structural, machinery, and agricultural applications. Built from Grade 2 steel, this bolt delivers dependable strength and long-lasting durability. Featuring a zinc finish for enhanced resistance against rust and corrosion, it comes with coarse threads and a square head design that provides an easy, solid grip with standard wrenches.