Gjengetapper/-bakker
UNC – Amerikanske grovgjenger
Gjengetabell UNC Unified national coarse thread series ANSI B1.1
| Diameter x Stigning | Gjengebor |
| UNC No. 1 x 64 | 1,50 |
| UNC No. 2 x 56 | 1,80 |
| UNC No. 3 x 48 | 2,10 |
| UNC No. 4 x 40 | 2,30 |
| UNC No. 5 x 40 | 2,60 |
| UNC No. 6 x 32 | 2,85 |
| UNC No. 8 x 32 | 3,50 |
| UNC No. 10 x 24 | 3,90 |
| UNC No. 12 x 24 | 4,50 |
| UNC 1/4 x 20 | 5,20 |
| UNC 5/16 x 18 | 6,60 |
| UNC 3/8 x 16 | 8,00 |
| UNC 7/16 x 14 | 9,40 |
| UNC 1/2 x 13 | 10,80 |
| UNC 9/16 x 12 | 12,20 |
| UNC 5/8 x 11 | 13,50 |
| UNC 3/4 x 10 | 16,50 |
| UNC 7/8 x 9 | 19,50 |
| UNC 1" x 8 | 22,25 |
| UNC 1.1/8 x 7 | 25,00 |
| UNC 1.1/4 x 7 | 28,25 |
| UNC 1.3/8 x 6 | 30,75 |
| UNC 1.1/2 x 6 | 34,00 |
| UNC 1.3/4 x 5 | 39,50 |
| UNC 2" x 4,5 | 45,00 |
| UNC 2.1/4 x 4,5 | 51,50 |
| UNC 2.1/2 x 4 | 57,25 |
| UNC 2.3/4 x 4 | 63,50 |
| UNC 3" x 4 | 70,00 |
| UNC 3.1/4 x 4 | 76,20 |