ASTM A194 for Nuts
| Specification | Nominal Size (inches) | Material |
|---|---|---|
| A194 Grade 2 | 1/4 - 4 | Medium Carbon Steel |
| A194 Grade 2H | 1/4 - 4 | Medium Carbon Steel, Quenched and Tempered |
| A194 Grade 2HM | 1/4 - 4 | Medium Carbon Steel, Quenched and Tempered |
| A194 Grade 4 | 1/4 - 4 | Medium Carbon Alloy Steel, Quenched and Tempered |
| A194 Grade 7 | 1/4 - 4 | Medium Carbon Alloy Steel, Quenched and Tempered |
| A194 Grade 7M | 1/4 - 4 | Medium Carbon Alloy Steel, Quenched and Tempered |
| A194 Grade 8 | 1/4 - 4 | Stainless AISI 304 |
| A194 Grade 8M | 1/4 - 4 | Stainless AISI 316 |
For more information, see www.astm.org.