DIAMETER (mm)

14.1

14.3

14.5

14.7

14.9

15.1

15.3

15.5

15.7

15.9

16.1

16.3

16.5

16.7

16.9

17.1

17.3

17.5

17.7

17.9

18.1

18.2

18.3

18.5

18.8

19.0

19.2

19.4

 

 

EUROPE

44

45

 

46

47

 

48

 

49

50

 

51

52

 

53

 

54

55

 

56

57

 

 

58

59

 

60

61

 

 

UK & AUSTRALIA

F 1/2

G

G 1/2

H

H 1/2

I

I 1/2

J

J 1/2

K

K 1/2

L

L 1/2

M

M 1/2

N

N 1/2

O

O 1/2

P

P 1/2

 

Q

Q 1/2

R

R 1/2

S

S 1/2

 

 

US & CANADA 

3

 

3 1/2

 

4

 

4 1/2

 

5

 

5 1/2

 

6

 

6 1/2

 

7

 

7 1/2

 

8

 

 

8 1/2

 

9

 

9 1/2