Coupler Size

Outer Dia ±0.5mm

Inner Dia +0.25mm

Length +2mm

Thread Pitch (mm)

Thread Angle

Weight/Pc (kg)

D12

19

10.28

35

M12*1.75P

60°

0.036

D14

21

12.55

38

M14.8*2.5P

60°/75°

0.068

D16

24

14.50

43

M16.8*2.5P

60°/75°

0.099

D18

27

16.35

48

M18.6*2.5P

60°/75°

0.125

D20

29

18.45

53

M20.6*2.5P

60°/75°

0.180

D22

33

20.35

58

M22.6*2.5P

60°/75°

0.205

D25

37

23.15

63

M26.0*3.0P

60°/75°

0.317

D28

41 

25.95

68

M28.6*3.0P

60°/75°

0.399

D32

47

30.15

80

M32.8*3.0P

60°/75°

0.640

D36

54

33.85

83

M36.7*3.5P

60°/75°

0.900 

D40

59

37.55

88

M40.4*3.5P

60°/75°

1.099

D50

74

47.10

125

M50.4*3.5P

75°

1.298