Square bolts are typically mated with square-headed nuts. A square head bolt has a four-sided head. Compared to standard hex bolts, square bolts have a greater surface in contact with the part being fastened, and therefore provide greater resistance to loosening (though also greater resistance to tightening).
Screws & Bolts,Square Head Bolts
Square Head Bolt, Steel, Grade 2, Zinc Plated, 5/16-18 Thread Size, 4 Lg, 10 PK
Specifications of Square Head Bolt, Steel, Grade 2, Zinc Plated, 5/16-18 Thread Size, 4 Lg, 10 PK | |
---|---|
Category | |
Instock | instock |