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Circumference (mm) |
Inner diameter (mm) |
USA |
UK |
EU(VENETIA) |
44.2 |
14.1 |
3 |
F |
4 |
44.8 |
14.3 |
- |
F-1/2 |
5 |
45.5 |
14.5 |
3-1/2 |
G |
- |
46.1 |
14.7 |
- |
G-1/2 |
6 |
46.8 |
14.9 |
4 |
H |
7 |
47.4 |
15.1 |
- |
H-1/2 |
- |
48.0 |
15.3 |
4-1/2 |
AND |
8 |
48.7 |
15.5 |
- |
J |
- |
49.3 |
15.7 |
5 |
J-1/2 |
9 |
50.0 |
15.9 |
- |
K |
- |
50.6 |
16.1 |
5-1/2 |
K-1/2 |
10 |
51.2 |
16.3 |
- |
L |
- |
51.9 |
16.5 |
6 |
L-1/2 |
11 |
52.5 |
16.7 |
- |
M |
12 |
53.1 |
16.9 |
6-1/2 |
M-1/2 |
13 |
53.8 |
17.1 |
- |
N |
- |
54.4 |
17.3 |
7 |
N-1/2 |
14 |
55.1 |
17.5 |
- |
ABOUT |
- |
55.7 |
17.7 |
7-1/2 |
O-1/2 |
15 |
56.3 |
17.9 |
- |
P |
- |
57.0 |
18.1 |
8 |
P-1/2 |
16 |
57.6 |
18.3 |
- |
Q |
- |
58.3 |
18.5 |
8-1/2 |
Q-1/2 |
17 |
58.9 |
18.8 |
- |
R |
- |
59.5 |
19.0 |
9 |
R-1/2 |
18 |
60.2 |
19.2 |
- |
S |
- |
60.8 |
19.4 |
9-1/2 |
S-1/2 |
19 |
61.4 |
19.6 |
- |
T |
- |
62.1 |
19.8 |
10 |
T-1/2 |
20 |
62.7 |
20.0 |
- |
AT |
21 |
63.4 |
20.2 |
10-1/2 |
U-1/2 |
22 |
64.0 |
20.4 |
- |
V |
- |
64.6 |
20.6 |
11 |
V-1/2 |
23 |
65.3 |
20.8 |
- |
IN |
- |
65.9 |
21.0 |
11-1/2 |
W-1/2 |
24 |
66.6 |
21.2 |
- |
X |
- |
67.2 |
21.4 |
12 |
X-1/2 |
25 |
67.8 |
21.6 |
- |
Y |
- |
68.5 |
21.8 |
12-1/2 |
WITH |
26 |
69.1 |
22.0 |
- |
Z-1/2 |
- |
69.7 |
22.2 |
13 |
- |
27 |
70.4 |
22.4 |
- |
Z + 1 |
- |
71.0 |
22.6 |
13-1/2 |
- |
- |