Stud Bolt with Nut 1.Standard: A193 B7/B16/B8/B8M; A194 2H/2HM/8M, A320 L7/L7M 2.Thread : UNC, UNF, 8UN threaded rod left hand/ threaded stud bolt with nutsDescriptionMaterialASTM A193/A320/A193M/A320M B7-B16-B7M-L7-L7MSize1/4" -4" & M6-M100StandardA193 B7/B16/B8M; A1942H/8/8FGrade4.6, 4.8, 6.8, 8.8, 10.9, 12.9FinishBlack, Zinc Plated, Galvanized, Hot Dip Galvanized, Nickel Plated, Chrome ...