公称直径d

螺距

P

公称长度L1

螺套圈数

W（±1/4）

自 由 状 态 外 径

钻头直径

Φ（±1/2）

xd

mm

min

max

2

0.4

1d

2

3.6

2.53

2.70

2.1

1.5d

3

5.9

2d

4

8.1

2.5d

5

10.4

3d

6

12.6

2.5

0.45

1d

2.5

4.1

3.20

3.70

2.6

1.5d

3.75

6.6

2d

5

9.1

2.5d

6.25

11.7

3d

7.5

14.2

3

0.5

1d

3

4.2

3.8

4.35

3.1

1.5d

4.5

7.1

2d

6

9.9

2.5d

7.5

12.5

3d

9

15.2

4

0.7

1d

4

4.3

5.05

5.6

4.2

1.5d

6

6.9

2d

8

9.6

2.5d

10

11.9

3d

12

14.7

5

0.8

1d

5

4.8

6.25

6.8

5.2

1.5d

7.5

7.2

2d

10

10.3

2.5d

12.5

13.4

3d

15

16.2

6

1

1d

6

4.6

7.58

7.95

6.3

1.5d

9

7.1

2d

12

9.9

2.5d

15

12.6

3d

18

15.2

7

1

1d

7

5.5

8.58

9.2

7.3

1.5d

10.5

8.8

2d

14

12

8

1

1

8

6.2

9.7

10.25

8.3

1.5

12

10.2

2

16

13.9

8

1.25

1d

8

5

9.85

10.25

8.3

1.5d

12

7.7

2d

16

10.9

2.5d

20

13.8

公称直径d

螺距

P

公称长度L1

螺套圈数

W（±1/4）

自 由 状 态 外 径

钻头直径

Φ（±1/2）

xd

mm

min

max

8

1.25

3d

24

16.8

9.85

10.25

8.3

9

1.25

1d

9

5.8

10.8

11.1

9.3

1.5d

13.5

9.2

2d

18

12.6

10

1.5

1d

10

5

12.1

12.8

10.4

1.5d

15

8.1

2d

20

11.2

2.5d

25

14.4

3d

30

17.6

10

1.25

1d

10

6.4

11.87

12.65

10.3

1.5d

15

10.1

2d

20

13.8

2.5d

25

17.5

10

1

1d

10

8.3

11.68

12.65

10.3

1.5d

15

12.9

2d

20

17.5

11

1.5

1d

11

5.7

13.1

13.5

11.4

1.5d

16.5

9.1

2d

22

12.5

12

1.75

1d

12

5.5

14.4

15.0

12.4

1.5d

18

8.7

2d

24

11.9

2.5d

30

15.1

3d

36

18.4

12

1.5

1d

12

6.2

14.4

15.0

12.4

1.5d

18

9.8

2d

24

13.5

2.5d

30

16.9

12

1.25

1d

12

8

14.27

15.0

12.3

1.5d

18

12.5

2d

24

17

2.5d

30

21

12

1

1d

12

10.1

14.18

15.0

12.3

1.5d

18

15.7

2d

24

21.2

13

1.25

1d

13

8.7

15.2

16.3

13.3

1.5d

19.5

13.6

2d

26

18.4

14

2

1d

14

5.6

16.8

17.8

14.5

1.5d

21

8.9

公称直径d

螺距

P

公称长度L1

螺套圈数

W（±1/4）

自 由 状 态 外 径

钻头直径

Φ（±1/2）

xd

mm

min

max

14

2

2d

28

12.2

16.8

17.8

14.5

2.5d

35

15.5

14

1.5

1d

14.0

7.7

16.52

17.7

14.4

1.5d

21.0

12.1

2d

28.0

16.4

2.5d

35.0

20.7

14

1.25

1d

14.0

9.5

16.45

17.7

14.3

1.5d

21.0

14.7

2d

28.0

19.7

16

2

1d

16.0

6.5

18.87

19.9

16.5

1.5d

24.0

10.0

2d

32.0

13.9

2.5d

40.0

17.5

3d

48.0

21.2

16

1.5

1d

16.0

8.5

18.52

19.9

16.4

1.5d

24.0

13.3

2d

32.0

18.1

18

2.5

1d

18.0

5.8

21.4

22

18.6

1.5d

27.0

9.2

2d

36.0

12.6

2.5d

45.0

16.0

18

2

1d

18.0

7.1

21

22

18.5

1.5d

27.0

11.2

2d

36.0

14.9

18

1.5

1d

18.0

9.8

20.54

22

18.4

1.5d

27.0

15.0

2d

36.0

20.3

20

2.5

1d

20.0

8.4

23.46

24.4

20.6

1.5d

30.0

10.0

2d

40.0

14.0

2.5d

50.0

17.9

20

2

1d

20.0

8.0

23.12

24.2

20.5

1.5d

30.0

12.5

2d

40.0

16.6

20

1.5

1d

20.0

10.7

22.77

24.2

20.4

1.5d

30.0

16.7

2d

40.0

22.0

22

2.5

1d

22.0

7.1

25.61

26.9

22.6

1.5d

33.0

11.2

2d

44.0

15.0

公称直径d

螺距

P

公称长度L1

螺套圈数

W（±1/4）

自 由 状 态 外 径

钻头直径

Φ（±1/2）

xd

mm

min

max

22

1.5

1d

22

11.9

24.92

26.8

22.4

1.5d

33

18.4

2d

44

24.5

24

3

1d

24

6.6

28.15

29.1

24.8

1.5d

36

10.4

2d

48

14.1

2.5d

60

17.9

24

2

1d

24

9.6

27.27

29.1

24.5

1.5d

36

15.0

2d

48

20.0

24

1.5

0.75d

18

9.5

27.92

29.1

24.4

1d

24

13.0

1.5d

36

19.5

26

1.5

0.75d

19.5

10.8

29

30.0

26.4

1d

26

14.4

1.5d

39

21.6

27

3

1d

27

7.5

31.15

32.4

27.8

1.5d

40.5

11.7

2d

54

16

27

2

1d

27

10.9

30.27

32.4

27.5

1.5d

40.5

16.9

2d

54

22.5

27

1.5

0.75d

20.25

11.4

29.92

32.4

27.4

1d

27

15.6

1.5d

40.5

22.3

30

3.5

1d

30

7.1

34.7

35.81

30.9

1.5d

45

11.2

2d

60

15.2

2.5d

75

19.2

30

2

0.75d

22.5

9.0

33.27

35.81

30.5

1d

30

12.0

1.5d

45

18.0

30

1.5

0.5d

15

7.8

32.92

35.81

30.4

0.75d

22.5

12.2

1d

30

16.7

33

3.5

1d

33

8.0

37.7

39.0

33.9

1.5d

49.5

12.4

2d

66

16.9

33

2

0.75d

24.75

10.1

36.27

39.0

33.5

1d

33

13.8