Product | Carbon Steel | Alloy Steel |
Stud bolts | ASME 818.2.1 | ASME 818.2.1 |
Bolts smaller than 3/4 in. | ASME 818.2.1, square or heavy hex head | ASME 818.2.1, heavy hex head |
Bolts equal to or larger than 3/4 in. | ASME 818.2.1, square or hex head | ASME 818.2.1, heavy hex head |
Nuts smaller than 3/4 in. | ASME 818.2.2, heavy hex | ASME 818.2.2, heavy hex |
Nuts equal to or larger than 3/4 in. | ASME 818.2.2, hex or heavy hex | ASME B18.2.2, heavy hex |
Male threads | ASME B1.1, Cl. 2A course series | ASME B1.1, Cl. 2A course series up through 1 in.; eight thread series for larger bolts |
Female threads | ASME B1.1, Cl. 28 course series | ASME Bl.1, Cl. 2B course series up through 1 in.; eight thread series for larger bolts |
IPT's Industrial Fasteners Handbook (Bolting and Securing Systems)
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