Tabel Inch / mm
Deze maten zijn voor de buitendiameter en lengte van de bouten.
| Maat in Inch | Maat in mm |
| No. 1 | 1,854 |
| No. 2 | 2,184 |
| No. 3 | 2,515 |
| No. 4 | 2,845 |
| No. 5 | 3,175 |
| No. 6 | 3,505 |
| No. 8 | 4,166 |
| No. 10 - 3/16" | 4,826 |
| No. 12 | 5,486 |
| 1/4" | 6,350 |
| 5/16" | 7,938 |
| 3/8" | 9,525 |
| 7/16" | 11,112 |
| 1/2" | 12,700 |
| 9/16" | 14,288 |
| 5/8" | 15,875 |
| 3/4" | 19,050 |
| 7/8" | 22,225 |
| 1" | 25,400 |
| 1 1/8" | 28,575 |
| 1 1/4" | 31,750 |
| 1 3/8" | 34,925 |
| 1 1/2" | 38,100 |
| 1 3/4" | 44,450 |
| 2" | 50,800 |
| 2 1/4" | 57,150 |
| 2 1/2" | 63,500 |
| 2 3/4" | 69,850 |
| 3" | 76,200 |
| 3 1/4" | 82,550 |
| 3 1/2" | 88,900 |
| 3 3/4" | 95,250 |
| 4" | 101,600 |
