Stud Bolt SA-193 ASME B18.31.2 3/4" UNC 200 mm ASME SA-193M Gr. B16 EN 10204 3.1 1200 pieces Heavy Hex Nut SA-194 ASME B18.31.2 3/4" UNC 2B ASME SA-194M Gr. 7 EN 10204 3.1 1200 pieces