Specializing in the production of stainless steel series products (material: 201304316). Flange screws: GB5787、GB5789、D1N6921, Cylindrical head hexagonal screw: GB70、DN912, Half circle hexagonal screw: ISO7380, Countersunk hexagonal screw: DN7991, Anti theft screws, large flat head hexagon socket screws, umbrella shaped hexagon socket screws, pan head cross combination bolts: GB9074.8, External hexagon cross combination: GB9074.1 Internal hexagon plum blossom combination bolt, Internal hexagon combination bolt: D1N912, Outer hexagon combination bolt: GB9074.17, Non standard bolts and other automotive and motorcycle accessories products.