CHENA INDUSTRIAL CO., LTD

unit:mm　

M
Coarse thread

S

B

d

K

L

Load (N)

Applicable 
spanner

Light load (L)

Heavy load (H)

Extremely heavy load (X)

min.

max.

min.

max.

min.

max.

M3

1.5

0.9

1.1

15

15

0.4

1.3

0.8

2.94

1.1

3.42

Flathead

screwdriver

3

0.2

0.6

2.93

0.8

3.41

M4

2

1.3

1.6

0.9

2

2

8.8

6.1

13.8

4

24

24

0.6

2.1

1.9

8.75

5.8

13.6

M5

3

1.5

2

20

20

1.4

9.7

2.7

16.3

6.8

22

P-1

5

27

27

1.1

10.3

1

17.1

5.7

21.5

M6

3

2

2.5

25

25

6

9.8

8

26.4

15.8

35.6

5

30

30

3.4

9.86

4.4

26.6

12.9

34.4

M8

3

2.5

3.1

25

25

6

9.9

14.7

27

21.9

36.3

P-2

5

27

27

4

9.83

6.7

26.6

14.7

34.5

M10

5

3

3.8

30

30

5.7

14.7

8.2

45.7

24.5

58.6

10

43

4.4

6.2

45.1

19.8

58.7

M12

5

4

5.5

30

5.8

18.2

49

34.9

63.6

P-3

10

35

43

5

8.2

49.1

25.5

15

51

6.9

7.5

48.9

20.1

63.7

M16

10

5

8

57

9.2

34.2

18.9

68.5

38.7

88.4

P-4

15

8.6

34.4

14.4

68.6

33.9

88.1

20

65

7.1

4.2

25.4