Bolt, Nut, Screw manufacturer / supplier in China, offering DIN6921 Industrial Carbon Steel Color-Zinc Plated M16 Grade 8.8 Hexagon Flange Bolts B18.2.1, Stainless Steel 304 316 Flange Bolt/Carriage Bolt/Square Bolt/T Bolt/U Bolt/Bolts and Nuts/Through Bolt/Wedge Anchor, DIN 6921 ANSI/ASME Stainless Steel M4-M42 Hexagon Flange Bolt in Various Sizes and Finishes and so on.