Size | Þvermál (mm) | Ummál (mm) | UK | USA | FR | IT |
---|---|---|---|---|---|---|
42 | 13.4 | 42.13 | D 1/2 | 2 1/4 | 42 | 2 |
44 | 14.0 | 44.14 | F | 3 | 44 | 4 |
46 | 14.5 | 45.74 | G 1/2 | 3 5/8 | 46 | 8 |
48 | 15.3 | 47.97 | I 1/2 | 4 1/2 | 48 | 9 |
50 | 15.9 | 49.95 | K 1/4 | 5 1/4 | 50 | 11 |
52 | 16.5 | 51.87 | M | 6 | 52 3/4 | 13 |
54 | 17.2 | 53.87 | N 1/2 | 6 3/4 | 54 | 15 |
56 | 17.8 | 55.76 | P | 7 1/2 | 56 1/2 | 17/18 |
58 | 18.5 | 58.21 | Q 3/4 | 8 1/2 | 58 | 18/19 |
60 | 19.2 | 60.38 | S 1/4 | 9 1/4 | 60 1/2 | 20 |
62 | 19.8 | 62.33 | T 1/2 | 10 | 62 | 22 |
64 | 20.4 | 64.21 | V 1/4 | 10 3/4 | 64 | 23 |
66 | 21.0 | 66.22 | W 1/2 | 11 1/2 | 66 | 25 |
68 | 21.8 | 68.5 | Z | 12 1/2 | 68 3/4 | 28.5 |