Non-Standard Metal Parts manufacturer / supplier in China, offering ASTM A193 B7 B16 L7 Stud Bolt with Heavy Hex Nut Grade 2h, Full Threaded Rod, ASTM A193 Stud Bolts with Hex Nuts ASTM A194 Grade 2h Hex Nuts, ASTM A193 B7 B16 B7m Stud Bolt with Hex Nut ASTM A194 Grade 2h and so on.