China Carbon Steel Thread Rod /Stud Bolt /Anchor Bolt /Bolt and Nut DIN 975 DIN 976 Electro Galvanized, Hot DIP Galvanized, Zinc, Black Threaded Rods Stainless Steel, Find details about China Auto Parts, Hardware from Carbon Steel Thread Rod /Stud Bolt /Anchor Bolt /Bolt and Nut DIN 975 DIN 976 Electro Galvanized, Hot DIP Galvanized, Zinc, Black Threaded Rods Stainless Steel