Metric (mm)USUK
1.5 mm82.5
2.00 mm-14
2.25 mmB/113
2.50 mm-12
2.75 mmC/2-
3.00 mm-11
3.25 mmD/310
3.50 mmE/49
3.75 mmF/5-
4.00 mmG/68
4.50 mm77
5.00 mmH/86
5.50mmI/95
6.00 mmJ/104
6.50 mmK/10 ½3
7.00 mm-2
8.00 mmL/110
9.00 mmM/1300
10.0 mmN/15000