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| Diameter(mm) | United States& Canada |
Europe | UK &Austalia |
Singapore Japan |
Hong Kong | Switzerland |
|---|---|---|---|---|---|---|
| 14.1 | 3 | 44 | F1/2 | 4 | 6 | 4 |
| 14.3 | 45 | G | 5 | 5 1/4 | ||
| 14.5 | 3.5 | G 1/2 | 7 | |||
| 14.7 | 46 | H | 6 | 6 1/2 | ||
| 14.9 | 4 | 47 | H 1/2 | 7 | 8 | |
| 14.9 | 4 | 47 | H 1/2 | 7 | 8 | 6 1/2 |
| 15.1 | I | 7 3/4 | ||||
| 15.3 | 4.5 | 48 | I 1/2 | 8 | 9 | |
| 15.5 | J | 10 | 9 | |||
| 15.7 | 5 | 49 | J 1/2 | 9 | ||
| 15.9 | 50 | K | 11 | 10 | ||
| 16.1 | 5.5 | K 1/2 | 10 | |||
| 16.3 | 51 | L | 12 | 11 3/4 | ||
| 16.5 | 6 | 52 | L 1/2 | 11 | 13 | 12 3/4 |
| 16.7 | M | 12 | ||||
| 16.9 | 6.5 | 53 | M 1/2 | 13 | 14 | 14 |
| 17.1 | N | |||||
| 17.3 | 7 | 54 | N 1/2 | 14 | 15 | 15 1/4 |
| 17.5 | 55 | O | 16 | |||
| 17.7 | 7.5 | O 1/2 | 15 | 16 1/2 |
