Back Home / Fasteners / Bolts / HEX FLANGE BOLT SERRATED UNC ZINC 3/8″-16 X 1″ GR 8 HEX FLANGE BOLT SERRATED UNC ZINC 3/8″-16 X 1″ GR 8 SKU: X3816X1HF8Z Categories: Bolts, Fasteners An unslotted hex head screw with unified thread pitch and a flange that has serrations on the bearing surface side. For use in applications where loosening forces are present, such as vibration. The serrations grip to the bearing surface. Flange provides more strength than a standard machine screw. Diameter 3/8″ Case Quantity: 50 Log In For Pricing