4/27/2553

Metric coarse thread DIN 13



d = D





d = Tapping drill size + P




h3 = 0.6134 x P





H1 = 0.5413 x P





R = 0.1443 x P





d2 = D2 = d - 0.6495 x P




d3 = d - 1.2269 x P




D1 = d - 1.0825 x P










Nominal Diameter

Pitch

Tapping Drill Size




M

mm

mm




1.00

0.25

0.75




1.10

0.25

0.85




1.20

0.25

0.95




1.40

0.30

1.10




1.60

0.35

1.25




1.80

0.35

1.45




2.00

0.40

1.60




2.20

0.45

1.75




2.50

0.45

2.05




3.00

0.50

2.50




3.50

0.60

2.90




4.00

0.70

3.30




4.50

0.75

3.70




5.00

0.80

4.20




6.00

1.00

5.00




7.00

1.00

6.00




8.00

1.25

6.80




9.00

1.25

7.80




10.00

1.50

8.50




11.00

1.50

9.50




12.00

1.75

10.25




14.00

2.00

12.00




16.00

2.00

14.00




18.00

2.50

15.50




20.00

2.50

17.50




22.00

2.50

19.50




24.00

3.00

21.00




27.00

3.00

24.00




30.00

3.50

26.50




33.00

3.50

29.50




36.00

4.00

32.00




39.00

4.00

35.00




42.00

4.50

37.50




45.00

4.50

40.50




48.00

5.00

43.00




52.00

5.00

47.00




56.00

5.50

50.50




60.00

5.50

54.50




64.00

6.00

58.00




68.00

6.00

62.00




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