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螺紋攻牙底孔參數

比较正规的买球软件2018-11-19


一、螺紋下孔徑表

1、公制粗牙螺紋                        JIS B 0209-1982( 單位: mm)

螺紋尺寸

鉆頭直徑

螺紋下孔徑

內螺紋小徑

最小直徑

最大直徑

M 1  × 0.25

0.75

0.78 (80%)

0.729

0.785

1.1 × 0.25

0.85

0.88 (80%)

0.829

0.885

1.2 × 0.25

0.95

0.98 (80%)

0.929

0.985

1.4 × 0.3

1.1

1.14 (80%)

1.075

1.142

1.6 × 0.35

1.25

1.32 (75%)

1.221

1.321

1.8 × 0.35

1.45

1.52 (75%)

1.421

1.521

2  × 0.4

1.6

1.65 (80%)

1.567

1.679

2.2 × 0.45

1.75

1.83 (75%)

1.713

1.838

2.5 × 0.45

2.1

2.13 (75%)

2.013

2.138

3  × 0.5

2.5

2.59 (75%)

2.459

2.599

3.5 × 0.6

2.9

3.01 (75%)

2.850

3.010

4  × 0.7

3.3

3.39 (80%)

3.242

3.422

4.5 × 0.75

3.8

3.85 (80%)

3.688

3.878

5  × 0.8

4.2

4.31 (80%)

4.134

4.334

6  × 1

5

5.13 (80%)

4.917

5.153

7  × 1

6

6.13 (80%)

5.917

6.153

8  × 1.25

6.8

6.85 (85%)

6.647

6.912

9  × 1.25

7.8

7.85 (85%)

7.647

7.912

10  × 1.5

8.5

8.62 (85%)

8.376

8.676

11  × 1.5

9.5

9.62 (85%)

9.376

9.676

12  × 1.75

10.3

10.40 (85%)

10.106

10.441

14  × 2

12

12.2  (85%)

11.835

12.210

16 × 2

14

14.2  (85%)

13.835

14.210

18 × 2.5

15.5

15.7  (85%)

15.294

15.744

20 × 2.5

17.5

17.7  (85%)

17.294

17.744

22 × 2.5

19.5

19.2  (85%)

19.294

19.744

24 × 3

21

21.2  (85%)

20.752

21.252

27 × 3

24

24.2  (85%)

23.752

24.252

30 × 3.5

26.5

26.6  (90%)

26.211

26.771

33 × 3.5

29.5

29.6  (90%)

29.211

29.771

36 × 4

32

32.1  (90%)

31.670

32.270

39 × 4

35

35.1  (90%)

34.670

35.270

42 × 4.5

37.5

37.6  (90%)

37.129

37.799

45 × 4.5

40.5

40.6  (90%)

40.129

40.799

48 × 5

43

43.1  (90%)

42.587

43.297

(1)M1.4 以下等級: 5H M1.6 以上等級: 6H   (2) 基於 JIS B 0209-1982 標準

2、公制細牙螺紋-01                           JIS B 0211-1982( 單位: mm)

螺紋尺寸

鉆頭直徑

螺紋下孔徑

內螺紋小徑

最小直徑

最大直徑

M 2.5 × 0.35

2.2

2.22 (75%)

2.121

2.221

3 × 0.35

2.7

2.72 (75%)

2.621

2.721

3.5 × 0.35

3.2

3.22 (75%)

3.121

3.221

4 × 0.5

3.5

3.59 (75%)

3.459

3.599

4.5 × 0.5

4

4.09 (75%)

3.959

4.099

5 × 0.5

4.5

4.59 (75%)

4.459

4.599

5.5 × 0.5

5

5.09 (75%)

4.959

5.099

6 × 0.75

5.3

5.35 (80%)

5.188

5.378

7 × 0.75

6.3

6.35 (80%)

6.188

6.378

8 × 1

7

7.13 (80%)

6.917

7.153

8 × 0.75

7.3

7.35 (80%)

7.188

7.378

9 × 1

8

8.13 (80%)

7.917

8.153

9 × 0.75

8.3

8.35 (80%)

8.188

8.378

10 × 1.25

8.8

8.85 (85%)

8.647

8.912

10 × 1

9

9.13 (80%)

8.917

9.153

10 × 0.75

9.3

9.35 (80%)

9.188

9.378

11 × 1

10

10.13 (80%)

9.917

10.153

11 × 0.75

10.3

10.35 (80%)

10.188

10.378

12 × 1.5

10.5

10.62 (85%)

10.376

10.676

12 × 1.25

10.8

10.85 (85%)

10.647

10.912

12 × 1

11

11.13 (80%)

10.917

11.153

14 × 1.5

12.5

12.62 (85%)

12.376

12.676

14 × 1

13

13.13 (80%)

12.917

13.153

15 × 1.5

13.5

13.62 (85%)

13.376

13.676

15 × 1

14

14.13 (80%)

13.917

14.153

16 × 1.5

14.5

14.62 (85%)

14.376

14.676

16 × 1

15

15.13 (80%)

14.917

15.153

17 × 1.5

15.5

15.62 (85%)

15.376

15.676

17 × 1

16

16.13 (80%)

15.917

16.153

18 × 2

16

16.2   (85%)

15.835

16.210

18 × 1.5

16.5

16.62 (85%)

16.376

16.676

18 × 1

17

17.13 (80%)

16.917

17.153

20 × 2

18

18.2  (85%)

17.835

18.210

20 × 1.5

18.5

18.62 (85%)

18.376

18.676

20 × 1

19

19.13 (80%)

18.917

19.153

22 × 2

20

20.2   (85%)

19.835

20.210

22 × 1.5

20.5

20.62 (85%)

20.376

20.676

22 × 1

21

21.13 (80%)

20.917

21.153

24 × 2

22

22.2   (85%)

21.835

22.210

24 × 1.5

22.5

22.62 (85%)

22.376

22.676

24 × 1

23

23.13 (80%)

22.917

23.153

25 × 2

23

23.2  (85%)

22.835

23.210

25 × 1.5

23.5

23.62 (85%)

23.376

23.676

25 × 1

24

24.13 (80%)

23.917

24.153

公制細牙螺紋-02                                  JIS B 0211-1982( 單位: mm)

螺紋尺寸

鉆頭直徑

螺紋下孔徑

內螺紋小徑

最小直徑

最大直徑

M 26 × 1.5

24.5

24.62 (85%)

24.376

24.676

27 × 2

25

25.2    (85%)

24.835

25.210

27 × 1.5

25.5

25.62 (85%)

25.376

25.676

27 × 1

26

26.13 (80%)

25.917

26.153

28 × 2

26

26.2    (85%)

25.835

26.210

28 × 1.5

26.5

26.62 (85%)

26.376

26.676

28 × 1

27

27.13 (80%)

26.917

27.153

30 × 3

27

27.2  (85%)

26.752

27.252

30 × 2

28

28.2  (85%)

27.835

28.210

30 × 1.5

28.5

28.62 (85%)

28.376

28.676

30 × 1

29

29.13 (80%)

28.917

29.153

32 × 2

30

30.2  (85%)

29.835

30.210

32 × 1.5

30.5

30.62 (85%)

30.376

30.676

33 × 3

30

30.2  (85%)

29.752

30.252

33 × 2

31

31.2  (85%)

30.835

31.210

33 × 1.5

31.5

31.62 (85%)

31.376

31.676

35 × 1.5

33.5

33.62 (85%)

33.376

33.676

36 × 3

33

33.2   (85%)

32.752

33.252

36 × 2

34

34.2  (85%)

33.835

34.210

36 × 1.5

34.5

34.62 (85%)

34.376

34.676

38 × 1.5

36.5

36.62 (85%)

36.376

36.676

39 × 3

36

36.2   (85%)

35.752

36.252

39 × 2

37

37.2  (85%)

36.835

37.210

39 × 1.5

37.5

37.62 (85%)

37.376

37.676

40 × 3

37

37.2  (85%)

36.752

37.252

40 × 2

38

38.2  (85%)

37.835

38.210

40 × 1.5

38.5

38.62 (85%)

38.376

38.676

42 × 4

38

38.1  (90%)

37.670

38.270

42 × 3

39

39.2  (85%)

38.752

39.252

42 × 2

40

40.2   (85%)

39.835

40.210

42 × 1.5

40.5

40.62 (85%)

40.376

40.676

45 × 4

41

41.1  (90%)

40.670

41.270

45 × 3

42

42.2  (85%)

41.752

42.252

45 × 2

43

43.2  (85%)

42.835

43.210

45 × 1.5

43.5

43.62 (85%)

43.376

43.676

48 × 4

44

44.1  (90%)

43.670

44.270

48 × 3

45

45.2  (85%)

44.752

45.252

48 × 2

46

46.2  (85%)

45.835

46.210

48 × 1.5

46.5

46.62 (85%)

46.376

46.676

50 × 3

47

47.2  (85%)

46.752

47.252

50 × 2

48

48.2  (85%)

47.835

48.210

50 × 1.5

48.5

48.62 (85%)

48.376

48.676

(1) 等級: 6H (2) 基於 JIS B 0211-1982 標準

3、美制粗牙螺紋                               ( 單位: mm)

螺紋尺寸

鉆頭直徑

2B級螺紋下孔徑

內螺紋小徑

最小直徑

最大直徑

NO.1 -64UNC

1.55

1.57 (65%)

1.425

1.582

   2 -56

1.8

1.86 (65%)

1.695

1.871

3 -48

2.1

2.14 (65%)

1.941

2.146

4 -40

2.3

2.36 (70%)

2.157

2.385

   5 -40

2.6

2.69 (70%)

2.487

2.697

   6 -32

2.8

2.86 (75%)

2.642

2.895

   8 -32

3.4

3.52 (75%)

3.302

3.530

  10 -24

3.9

3.91 (80%)

3.683

3.962

  12 -24

4.5

4.57 (80%)

4.344

4.597

1/4  -20

5.1

5.25 (80%)

4.979

5.257

5/16 -18

6.6

6.72 (80%)

6.401

6.731

3/8  -16

8

8.15 (80%)

7.798

8.153

7/16 -14

9.4

9.5 0 (80%)

9.144

9.550

1/2  -13

10.8

11.0  (80%)

10.592

11.023

9/16 -12

12.2

12.3  (85%)

11.989

12.446

5/8  -11

13.6

13.8  (85%)

13.386

13.868

3/4  -10

16.5

16.8  (80%)

16.307

16.840

7/8 - 9

19.5

19.6  (85%)

19.177

19.761

1  - 8

22.2

22.5  (85%)

21.971

22.606

   1 1/8 - 7

25

25.2  (85%)

24.638

25.349

   1 1/4 - 7

28.2

28.4  (85%)

27.813

28.524

   1 3/8 - 6

30.8

31.0  (85%)

30.353

31.115

   1 1/2 - 6

34

34.2  (85%)

33.528

34.290

   1 3/4 - 5

39.5

39.8  (85%)

38.964

39.827

   2 - 4

45.2

45.3  (90%)

44.679

45.593

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