| REGULAR
SQUARE NUTS DIMENSIONS |
||
| All Dimensions in Inches | ||
| Size | Across Flats | Thickness |
| 1/4-20 | 7/16 | 7/32 |
| 5/16-18 | 9/16 | 17/64 |
| 3/8-16 | 5/8 | 21/64 |
| 7/16-14 | 3/4 | 3/8 |
| 1/2-13 | 13/16 | 7/16 |
| 5/8-11 | 1 | 35/64 |
| 3/4-10 | 1-1/8 | 21/32 |
| 7/8-9 | 1-5/16 | 49/64 |
| 1-8 | 1-1/2 | 7/8 |
| 1-1/8-7 | 1-11/16 | 1 |
| 1-1/4-7 | 1-7/8 | 1-3/32 |
| 1-1/2-6 | 2-1/4 | 1-5/16 |
| 2-4-1/2 | 3 | 1-3/4 |