Tabela skoków gwintów calowych wg ISO

| Gwinty calowe: | |||||||
|---|---|---|---|---|---|---|---|
| UNC UNF | Wym. w calach | mm | UNC | UNF | BSW | BSF | R,G Rp |
| 0 | 1,52 | 80 | |||||
| 1 | 1,58 | 64 | 72 | ||||
| 2 | 2,18 | 56 | 64 | ||||
| 3 | 2,15 | 48 | 56 | ||||
| 4 | 2,84 | 40 | 48 | ||||
| 5 | 3,17 | 40 | 44 | ||||
| 6 | 3,5 | 32 | 40 | ||||
| 8 | 4,16 | 32 | 36 | ||||
| 10 | 4,82 | 24 | 32 | ||||
| 12 | 5,48 | 24 | 28 | ||||
| 1/8 | 3,17 | 40 | 44 | 40 | 28 | ||
| 5/32 | 3,96 | 32 | 36 | 32 | |||
| 3/16 | 4,76 | 24 | 32 | 24 | 32 | ||
| 7/32 | 5,55 | 24 | 28 | 28 | |||
| 1/4 | 6,35 | 20 | 28 | 20 | 26 | 19 | |
| 5/16 | 7,93 | 18 | 24 | 18 | 22 | ||
| 3/8 | 9,52 | 16 | 24 | 16 | 20 | 19 | |
| 7/16 | 11,11 | 14 | 20 | 14 | 18 | ||
| 1/2 | 12,7 | 13 | 20 | 12 | 16 | 14 | |
| 9/16 | 14,28 | 12 | 18 | 12 | 16 | ||
| 5/8 | 15,87 | 11 | 18 | 11 | 14 | 14 | |
| 3/4 | 19,05 | 10 | 16 | 10 | 12 | 14 | |
| 7/8 | 22,22 | 9 | 14 | 9 | 11 | 14 | |
| 1 | 25,4 | 8 | 12 | 8 | 10 | 11 | |
| 1 1/8 | 28,57 | 7 | 12 | 7 | 9 | 11 | |
| 1 1/4 | 31,75 | 7 | 12 | 7 | 9 | 11 | |
| 1 3/8 | 34,92 | 6 | 12 | 6 | 8 | 11 | |
| 1 1/2 | 38,1 | 5 | 12 | 6 | 8 | 11 | |
| 1 3/4 | 44,45 | 5 | 12 | 5 | 7 | 11 | |
| 2 | 50,8 | 12 | 7 | 11 | |||
| 2 1/4 | 57,15 | ||||||
| 2 1/2 | 63,5 | 4 | |||||
| 2 3/4 | 69,85 | 4 | |||||
| 3 | 76,2 | 4 | |||||
| 4 | 101,6 | 4 | |||||