... bolt, U bolt, Eye boltT bolt, adjusting bolt and irregular bolts, full thread stud, half thread screwClassificationStandard ... structure, Construction, Automobile, Farm machinery, Mining fitting and othersBolts Hexagon head bolt, internal hexagonal screw,Allen Bolt ... Steel structure, Construction, Automobile, Farm machinery, Mining fitting and othersZinc Plated, Galvanized, HDG,White Zinc, Blue Zinc, ...