Table X1.1 Nut Compatibility Chart
| Grade of Bolt | Finish | Nominal Size | A563 Grade and ANSI Nut Style | |||
|---|---|---|---|---|---|---|
| Recommended | Suitable | |||||
| Hex | Heavy Hex | Hex | Heavy Hex | |||
| A307 Grade A & C | Any | 1/4 to 1-1/2 | A | - | B,D,DH | A,B,C,D,DH,DH3 |
| A307 Grade A & C | Any | >1-1/2 to 2 | - | A | A | C,D,DH,DH3 |
| A307 Grade A & C | Any | >2 to 4 | - | A | - | C,D,DH,DH3 |
| A307 Grade B | Any | 1/4 to 1-1/2 | - | A | B,D,DH | B,C,D,DH,DH3 |
| A307 Grade B | Any | >1-1/2 to 2 | - | A | A | - |
| A307 Grade B | Any | >2 to 4 | - | A | - | - |
| A325 Type 1 | Plain | 1/2 - 1-1/2 | - | C | - | C3, D, DH, DH3 |
| A325 Type 1 | Galvanized | 1/2 - 1-1/2 | - | DH | - | - |
| A325 Type 3 | Plain | 1/2 - 1-1/2 | - | C3 | - | DH3 |
| A354 Grade BC | Plain | 1/4 to 1-1/2 | - | C | - | C3, D, DH, DH3 |
| A354 Grade BC | Plain | >1-1/2 to 4 | - | C | - | C3, D, DH, DH3 |
| A354 Grade BC | Galvanized | 1/4 to 1-1/2 | - | DH | - | - |
| A354 Grade BC | Galvanized | >1-1/2 to 4 | - | DH | - | - |
| A354 Grade BD | Plain | 1/4 to 1-1/2 | - | DH | - | D, DH, DH3 |
| A354 Grade BD | Plain | >1-1/2 to 4 | - | DH | - | DH3 |
| A449 | Plain | 1/4 to 1-1/2 | B | - | D, DH | B,C,D,DH,DH3 |
| A449 | Plain | >1-1/2 to 3 | - | A | - | C,C3,D,DH,DH3 |
| A449 | Galvanized | 1/4 to 1-1/2 | - | DH | D, DH | D |
| A449 | Galvanized | >1-1/2 to 3 | - | DH | - | D |
| A490 Type 1 | Plain | 1/2 - 1-1/2 | - | DH | - | DH3 |
| A490 Type 3 | Plain | 1/2 - 1-1/2 | - | DH3 | - | - |
| A687 | Plain | 5/8 - 3 | - | DH | - | DH, DH3 |
| A687 | Galvanized | 5/8 - 3 | - | DH3 | - | - |
| F1554 Grade 55 | Plain | 1/4 to 1-1/2 | A | - | B,D,DH | A,B,C,D,DH,DH3 |
| F1554 Grade 55 | Plain | >1-1/2 to 4 | - | A | - | C,D,DH,DH3 |
| F1554 Grade 55 | Galvanized | 1/4 to 4 | - | A | - | C,D,DH,DH3 |
| F1554 Grade 105 | Plain | 1/4 to 1-1/2 | D | - | - | DH, DH3 |
| F1554 Grade 105 | Plain | >1-1/2 to 3 | - | DH | - | DH3 |
| F1554 Grade 105 | Galvanized | 1/4 to 3 | - | DH | - | DH3 |
| Source: ASTM A563-07a Appendix X1 | ||||||