| Diameter (MM) | Europe | USA | UK / Australia | France | Japan |
|---|---|---|---|---|---|
| 12,7 | 40 | 1.4 (1-) | C | 0,0 | 0,2 |
| 13,0 | 41 | 1.8 (1=) | C 1/2 | 1,0 | 1,1 |
| 13,4 | 42 | 2.2 (2) | D 1/2 | 2,0 | 2,1 |
| 13,7 | 43 | 2.6 (2-) | E 1/2 | 3,0 | 3,1 |
| 14,0 | 44 | 3.0 (2=) | F | 4,0 | 4,0 |
| 14,3 | 45 | 3.4 (3) | G | 5,0 | 5,0 |
| 14,6 | 46 | 3.7 (3-) | G 1/2 | 6,0 | 5,9 |
| 15,0 | 47 | 4.1 (4) | H1/2 | 7,0 | 6,9 |
| 15,3 | 48 | 4.5 (4-) | I 1/2 | 8,0 | 7,8 |
| 15,6 | 49 | 4.9 (4=) | J | 9,0 | 8,8 |
| 15,9 | 50 | 5.3 (5) | K | 10 | 9,7 |
| 16,2 | 51 | 5.7 (5-) | K 1/2 | 11 | 10,7 |
| 16,6 | 52 | 6.1 (6) | L 1/2 | 12 | 11,6 |
| 16,9 | 53 | 6.4 (6-) | M 1/2 | 13 | 12,6 |
| 17,2 | 54 | 6.8 (6=) | N | 14 | 13,6 |
| 17,5 | 55 | 7.2 (7) | O | 15 | 14,5 |
| 17,8 | 56 | 7.6 (7=) | P | 16 | 15,5 |
| 18,1 | 57 | 8.0 (8) | P 1/2 | 17 | 16,4 |
| 18,5 | 58 | 8.4 (8-) | Q 1/2 | 18 | 17,4 |
| 18,8 | 59 | 8.7 (8=) | R | 19 | 18,3 |
| 19,1 | 60 | 9.1 (9) | S | 20 | 19,3 |
| 19,4 | 61 | 9.5 (9-) | T | 21 | 20,2 |
| 19,7 | 62 | 9.9 (9=) | T 1/2 | 22 | 21,2 |
| 20,1 | 63 | 10.3 (10) | U 1/2 | 23 | 22,2 |
| 20,4 | 64 | 10.7 (10-) | V | 24 | 23,1 |
| 20,7 | 65 | 11.0 (11) | W | 25 | 24,1 |
| 21,0 | 66 | 11.4 (11-) | X | 26 | 25,0 |
| 21,3 | 67 | 11.8 (11=) | X 1/2 | 27 | 26,0 |
| 21,6 | 68 | 12.2 (12) | Y 1/2 | 28 | 26,9 |
| 22,0 | 69 | 12.6 (12-) | Z 1/2 | 29 | 27,9 |
| 22,3 | 70 | 13.0 (13) | Z +1 | 30 | 28,8 |
