STUD BOLTS W/ 2 HEAVY HEX NUTS, ASTM A193/194 Gr. B7M/2HM ASME B18.2.1 / 18.2.2, PTFE COATED, ISO 15156HaiderAugust 2, 2024FLANGES & ACCESSORIES Size : (½” – 48”) 1/2″ (M16) – 2″ Type : ( B7 / 2H) , (B7M / 2HM)