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Thread Repair System--Delisert

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Thread Insert Specification

  The wire thread insert is made of cold forging type 304 stainless steel, work hardening can reach strength of extension that is over 200000psi and hardness that is Rc43-50, The glazed surface is so smooth that it can eliminate thread damage. Procedure of thread insert is very complicated, during processing, it is necessary to reach some standard. At present, there are many standards of wire thread insert,such as,GJB, HB,UNF and so on. But from the perspective of specification, whatever the standard is, the specification of wire thread insert is same,here is a specification chart as below:


symbol explanation:

d:diameter of wire thread insert

L:the effective length after installation

P:thread pitch

do:drill bit diameter

N:coils before installation

  

size  diameter×pitch

k×d

length after installationL(mm)

coils before installationN()

external thread before installation(mm)

drill bit diameter do(mm)

M1.6X0.35

1d

1.6

3.1

2.1-2.3

1.6

1.5d

2.4

4.5

2d

3.2

6.2

M2X0.4

1d

2

3.2

2.5-2.8

2.1

1.5d

3

5.3

2d

4

7.4

2.5d

5

9.5

3d

6

11.6

M2.5X0.45

1d

2.5

3.6

3.2-3.5

2.6

1.5d

3.8

5.9

2d

5

8.2

2.5d

6.3

10.5

3d

7.5

12.8

M3X0.5

1d

3

4.2

3.7-4

3.1

1.5d

4.5

6.8

2d

6

9.4

2.5d

7.5

12

3d

9

14.6

M3.5X0.6

1d

3.5

4

4.5-4.8

3.7

1.5d

5.3

6.4

2d

7

8.9

2.5d

8.8

11.4

3d

10.5

13.9

M4X0.7

1d

4

4

5.0-5.3

4.2

1.5d

6

6.6

2d

8

9.1

2.5d

10

11.7

3d

12

14.2

M5X0.8

1d

5

4.4

6.3-6.6

5.2

1.5d

7.5

7.1

2d

10

9.9

2.5d

12.5

12.6

3d

15

15.3

M6X1

1d

6

4.3

7.5-7.9

6.3

1.5d

9

6.9

2d

12

9.6

2.5d

15

12.2

3d

18

14.9

M7X1

1d

7

5.2

8.6-8.9

7.3

1.5d

10.5

8.3

2d

14

11.5

2.5d

17.5

14.6

M8X1.25

1d

8

4.8

9.8-10.1

8.3

1.5d

12

7.7

2d

16

10.6

2.5d

20

13.5

3d

24

16.5

M8X1

1d

8

6

9.8-10.1

8.3

1.5d

12

9.6

2d

16

13.1

2.5d

20

16.7

M10X1.5

1d

10

5

12.0-12.5

10.4

1.5d

15

8.1

2d

20

11.2

2.5d

25

14.2

3d

30

17.3

M10X1.25

1d

10

6.1

12.0-12.5

10.3

1.5d

15

9.7

2d

20

13.3

2.5d

25

16.9

M10X1

1

10

7.7

12.0-12.5

10.3

1.5

15

12.1

2

20

16.5

2.5

25

20.8

M11X1.5

1d

11

5.7

13.0-13.4

11.4

1.5d

16.5

9.1

2d

22

12.5

M12X1.75

1d

12

5.3

14.3-14.8

12.4

1.5d

18

8.4

2d

24

11.6

2.5d

30

14.8

3d

36

18

M12X1.5

1d

12

6.2

14.3-14.8

12.4

1.5d

18

9.8

2d

24

13.5

2.5d

30

17.1

M12X1.25

1d

12

7.5

14.3-14.8

12.3

1.5d

18

11.8

2d

24

16.1

2.5d

30

20.3

M12X1

1d

12

9.4

14.3-14.8

12.3

1.5d

18

14.7

2d

24

19.9

M14X2

1d

14

5.4

16.7-17.2

14.5

1.5d

21

8.7

2d

28

11.9

2.5d

35

15.2

3d

42

18.4

M14X1.5

0.75d

10.5

5.2

16.7-17.2

14.4

1d

14

7.3

1.5d

21

11.5

2d

28

15.7

2.5d

35

19.9

M14X1.25

1d

14

8.8

16.7-17.2

14.3

1.5d

21

13.8

M16X2

1d

16

6.3

18.8-19.4

16.5

1.5d

24

10

2d

32

13.7

2.5d

40

17.5

3d

48

21.2

M16X1.5

0.75d

12

6.1

18.8-19.4

16.4

1d

16

8.5

1.5d

24

13.3

2d

32

18.1

M18X2.5

1d

18

5.6

21.4-22

18.6

1.5d

27

9

2d

36

12.3

2.5d

45

15.7

3d

54

19

M18X2

0.75d

13.5

5

21.4-22

18.5

1d

18

7.1

1.5d

27

11.2

2d

36

15.2

M18X1.5

0.75d

13.5

7.1

21.4-22

18.4

1d

18

9.8

1.5d

27

15

2d

36

20.3

M20X2.5

1d

20

6.5

23.6-24.2

20.6

1.5d

30

10

2d

40

13.8

2.5d

50

17.5

3d

60

21.2

M20X2

0.75d

15

5.7

23.6-24.2

20.5

1d

20

8

1.5d

30

12.5

2d

40

17.1

M20X1.5

0.5d

10

4.8

23.6-24.2

20.4

0.75d

15

7.8

1d

20

10.7

1.5d

30

16.7

M22X2.5

1d

22

6.9

26.2-26.8

22.6

1.5d

33

11

2d

44

15

2.5d

55

19

3d

66

23

M22X2

0.75d

16.5

6.3

26.2-26.8

22.5

1d

22

8.8

1.5d

33

13.7

2d

44

18.6

M22X1.5

0.5d

11

5.4

26-26.6

22.4

0.75d

16.5

8.7

1d

22

11.9

1.5d

33

18.4

M24X3

1d

24

6.3

28.5-29.1

24.8

1.5d

36

10

2d

48

13.7

2.5d

60

17.5

3d

72

21.2

M24X2

0.75d

18

7

28.5-29.1

24.5

1d

24

9.6

1.5d

36

15

2d

48

20.3

M24X1.5

0.5

12

6

28.4-28.9

24.4

0.75d

18

9.5

1d

24

13

1.5d

36

20

M26X1.5

0.5d

13

6.5

28.5-30

26.4

0.75d

19.5

10.3

1d

26

14

M27X3

1d

27

7.2

32.1-32.5

27.8

1.5d

40.5

11.3

2d

54

15.4

2.5d

67.5

19.5

M27X2

0.75d

20.3

7.9

31.7-32.2

27.5

1d

27

10.9

1.5d

40.5

16.9

M27X1.5

0.5d

13.5

6.9

31.3-32.1

27.4

0.75d

20.3

10.9

1d

27

14.9

1.5d

40.5

22.8

M28X1.5

0.5d

14

7.1

33.0-33.6

28.4

0.75d

21

11.2

1d

28

15.3

1.5d

42

23.5

M30X3.5

1d

30

6.9

35.0-35.6

30.9

1.5d

45

11

2d

60

15

2.5d

75

19

M30X2

0.5d

15

5.6

34.7-35.3

30.5

0.75d

22.5

9

1d

30

12.3

1.5d

45

19

M30X1.5

0.5d

15

7.8

34.3-34.9

30.4

0.75d

22.5

12.2

1d

30

16.7

1.5d

45

25.5

M33X3.5

1d

33

7.8

38.1-38.6

33.9

1.5d

49.5

12.2

2d

66

16.6

2.5d

82.5

21.1

3d

99

25.5

M33X2

0.5d

16.5

6.4

38.0-38.5

33.5

0.75d

24.8

10.1

1d

33

13.8

1.5d

49.5

21.2

M33X1.5

0.5d

16.5

8.7

37.8-38.3

33.4

0.75d

24.8

13.6

1d

33

18.5

M36X4

0.75d

27

5.2

41.9-42.3

37

1

36

7.3

1.5d

54

11.6

2d

72

15.8

M36X3

0.5d

18

4.4

41.8-42.3

36.8

0.75d

27

7.1

1d

36

9.9

1.5d

54

15.4

M36X2

0.5d

18

6.9

41.7-42.3

36.5

0.75d

27

11

1d

36

15

1.5d

54

23

M39X2

0.5d

19.5

7.7

44.8-45.4

39.5

0.75d

29.3

12.1

1d

39

16.4

M42X4.5

1d

42

7.3

49-51

43

1.25d

52

9.5

1.5d

63

11.6

M42X3.0

1d

42

11.7

48-50.5

43

1.25d

52

14.8

1.5d

63

18.1

M48X3

0.5d

24

6.2

55-55.5

48.8

0.75d

36

9.9

1d

48

13.6

M56X4

0.5d

28

5.4

64-65

17

0.75d

42

8.6

1d

56

11.8

M60X3

0.5d

30

7.9

69-70

60.8

0.75d

45

12.4

1d

60

16.9

1.5d

90

25.9

M60X4

0.5d

30

5.8

69-70

61

0.75d

45

9.2

1d

60

12.6

1.5d

90

19.5



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