Nut Compatibility Chart
Technical Menu Posted on July 2nd, 2015 by vaproASTM A563 Nut Compatibility Chart
| Grade of Bolt | Surface Finish | Nominal Size Inches | A563 Grade and ANSI Nut Style | |||
|---|---|---|---|---|---|---|
| Recommended | Suitable | |||||
| Hex | Heavy Hex |
Hex | Heavy Hex |
|||
| A307 Grade A & C | Any | 1⁄4 to 11⁄2 | A | B,D,DH | A,B,C,D,DH,DH3 | |
| >11⁄2 to 2 | A | A | C,D,DH,DH3 | |||
| >2 to 4 | A | C,D,DH,DH3 | ||||
| A307 Grade B | Any | 1⁄4 to 11⁄2 | A | B,D,DH | A,B,C,D,DH,DH3 | |
| >11⁄2 to 2 | A | A | ||||
| >2 to 4 | A | |||||
| A325 Type 1 | Plain | 1⁄2 – 11⁄2 | C | C3,D,DH,DH3 | ||
| Galvanized | 1⁄2 – 11⁄2 | DH | ||||
| A325 Type 3 | Plain | 1⁄2 – 11⁄2 | C3 | DH3 | ||
| A354 Grade BC | Plain | 1⁄4 to 11⁄2 | C | D,DH | C3,D,DH,DH3 | |
| >11⁄2 to 4 | C | C3,D,DH,DH3 | ||||
| Galvanized | 1⁄4 to 11⁄2 | DH | ||||
| >11⁄2 to 4 | DH | |||||
| A354 Grade BD | Plain | 1⁄4 to 11⁄2 | DH | DH | D,DH,DH3 | |
| >11⁄2 to 4 | DH | DH3 | ||||
| A449 | Plain | 1⁄4 to 11⁄2 | B | D,DH | B,C,C3,D,DH,DH3 | |
| >11⁄2 to 3 | A | C,C3,D,DH,DH3 | ||||
| Galvanized | 1⁄4 to 11⁄2 | DH | D,DH | D | ||
| >11⁄2 to 3 | DH | D | ||||
| A490 Type 1 | Plain | 1⁄2 – 11⁄2 | DH | DH3 | ||
| A490 Type 3 | Plain | 1⁄2 – 11⁄2 | DH3 | |||
| A687 | Plain | 5⁄8 – 3 | D | DH,DH3 | ||
| Galvanized | 5⁄8 – 3 | DH | ||||
| F1554 Grade 36 | Any | 1⁄4 to 11⁄2 | A | B,D,DH | A,B,C,D,DH,DH3 | |
| >11⁄2 to 4 | A | C,D,DH,DH3 | ||||
| F1554 Grade 55 | Plain | 1⁄4 to 11⁄2 | A | B,D,DH | A,B,C,D,DH,DH3 | |
| >11⁄2 to 4 | A | C,D,DH,DH3 | ||||
| Galvanized | 1⁄4 to 4 | A | C,D,DH,DH3 | |||
| F1554 Grade 105 | Plain | 1⁄4 to 11⁄2 | D | DH,DH3 | ||
| >11⁄2 to 3 | DH | DH3 | ||||
| Galvanized | 1⁄4 to 3 | DH | DH3 | |||
ASTM A194 Nut Compatibility Chart
| Grade of Bolt | A194 Heavy Hex Nut Grade |
|---|---|
| A193 Grade B7 | 2H |
| A193 Grade B8 (Class 1 and 2) | 8 |
| A193 Grade B8M (Class 1 and 2) | 8M |
| A320 Grade L7 | 4 or 7 |
| A320 Grade B8 (Class 1 and 2) | 8 |
| A320 Grade B8m(Class 1 and 2) | 8M |
