BoltsChina Threaded Rod Factory Carbon Steel/Stainless Steel A2 304 A4 316/DIN975 DIN976 ANSI ASTM Thread Rod with Hex Nut/Threaded Bar/Stud Bolts Grade A193 B7, Find details about China Threaded Bar, Threaded Rod from China Threaded Rod Factory Carbon Steel/Stainless Steel A2 304 A4 316/DIN975 DIN976 ANSI ASTM Thread Rod with Hex Nut/Threaded Bar/Stud Bolts Grade A193 B7