ASTM A320 Gr. L7M STUD BOLT

ASTM A320 Gr. L7M STUD BOLT C/W 2 HEAVY HEX NUTS A194 Gr 7M We are a professional manufacturer and exporter of ASTM A320 L7M stud bolt A194 7M Heavy Hex nuts in China ASTM A320 L7M Stud Bolts are used for LOW temperature performance. These fasteners are commonly used for valves, Read more…