Thread

Inside Diameter (d1)

Outside Diameter (d2)

Thickness (h)

Dia.

min.

max.

min.

max.

nom.

min.

max.

M12

13

13.27

23.48

24

3

2.7

3.3

M16

17

17.27

29.48

30

4

3.7

4.3

M20

21

21.33

36.38

37

4

3.7

4.3

M22

23

23.33

38.38

39

4

3.7

4.3

M24

25

25.33

43.38

44

4

3.7

4.3

M27

28

28.52

49

50

5

4.4

5.6

M30

31

31.62

54.8

56

5

4.4

5.6

M36

37

37.62

64.8

66

6

5.4

6.6