ASTM Bolt Grading Information
Last up dated on March 09, 2007
| ASTM—A 307 (SAE-Grade1) | ASTM—A 449 (SAE - Grade 5) | ASTM—A 325 | ASTM—A 354 Grade BB |
| Low Carbon Steel | Medium Carbon Steel, | Medium Carbon Steel, | Low Alloy Steel, |
| Not Tempered | Quenched and Tempered | Quenched and Tempered | Quenched and Tempered |
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| ASTM—A 354 Grade BC | ASTM—A 354 Grade BD | ASTM—A 490 |
| Low Alloy Steel, | Alloy Steel, | Alloy Steel, |
| Quenched and Tempered | Quenched and Tempered | Quenched and Tempered |
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