ASME B18.2.2 Heavy Hex Nut, ASTM A194 2H, 2HM, 7, 7M, 4, 8, 8M
Stud Bolts with 2 Heavy Hex Nuts, ASTM A193 B7, ASTM A194 2H
API 20E Heavy Hex Nut, ASTM A194 2H, 1-1/4 Inch, Xylan Coated