攻牙底孔参数解读.docx

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攻牙底孔参数解读.docx

攻牙底孔参数解读

攻牙底孔的使用参数表

一、螺紋下孔徑表

1、公制粗牙螺紋JISB0209-1982(單位:

mm)

螺纹尺寸

钻头直径

螺纹下孔徑

內螺紋小徑

最小直径

最大直径

M1×0.25

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JISB0209-1982標準

2、公制細牙螺紋-01JISB0211-1982(單位:

mm)

螺纹尺寸

钻头直径

螺纹下孔徑

內螺紋小徑

最小直径

最大直径

M2.5×0.35

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-02JISB0211-1982(單位:

mm)

螺纹尺寸

钻头直径

螺纹下孔徑

內螺紋小徑

最小直径

最大直径

M26×1.5

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JISB0211-1982標準

3、美制粗牙螺紋(單位:

mm)

螺纹尺寸

钻头直径

2B级螺纹下孔徑

內螺紋小徑

最小直径

最大直径

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

9.50(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

11/8-7

25

25.2(85%)

24.638

25.349

11/4-7

28.2

28.4(85%)

27.813

28.524

13/8-6

30.8

31.0(85%)

30.353

31.115

11/2-6

34

34.2(85%)

33.528

34.290

13/4-5

39.5

39.8(85%)

38.964

39.827

2-4

45.2

45.3(90%)

44.679

45.593

4、美制細牙螺紋(單位:

mm)

螺纹尺寸

钻头直径

2B级螺纹下孔徑

內螺紋小徑

最小直径

最大直径

NO.0-80UNF

1.25

1.30(65%)

1.182

1.305

1-72

1.55

1.61(65%)

1.474

1.612

2-64

1.85

1.90(65%)

1.756

1.912

3-56

2.1

2.17(70%)

2.025

2.197

4-48

2.4

2.44(70%)

2.271

2.458

5-44

2.7

2.74(70%)

2.551

2.740

6-40

2.9

3.02(70%)

2.820

3.022

8-36

3.5

3.59(75%)

3.404

3.606

10-32

4.1

4.14(80%)

3.963

4.165

12-28

4.6

4.70(80%)

4.496

4.724

1/4-28

5.5

5.56(80%)

5.360

5.588

5/16-24

6.9

7.02(80%)

6.782

7.035

3/8-24

8.5

8.61(80%)

8.382

8.636

7/16-20

9.9

10.01(80%)

9.729

10.033

1/2-20

11.5

11.60(80%)

11.329

11.607

9/16-18

12.9

13.07(80%)

12.751

13.081

5/8-18

14.5

14.65(80%)

14.351

14.681

3/4-16

17.5

17.59(85%)

17.323

17.678

7/8-14

20.5

20.6(85%)

20.270

20.675

1-12

23.2

23.5(85%)

23.114

23.571

11/8-12

26.5

26.7(80%)

26.289

26.746

11/4-12

29.5

29.9(80%)

29.464

29.921

13/8-12

32.8

33.0(85%)

32.639

33.096

11/2-12

36

36.2(85%)

35.814

36.271

5、英制粗牙螺紋(單位:

mm)

螺紋尺寸

下孔徑

嵌合率

A列(硬材質)

B列(軟材質)

A列直徑

B列直徑

內螺紋最小徑

內螺紋最大徑

W1/8

2.6

2.5

70.7

83.0

70.0

88.3

3/16

3.7

3.6

78.4

85.8

70.0

88.3

1/4

5.1

5.0

76.9

83.0

70.5

88.3

5/16

6.6

6.5

74.0

99.5

70.1

88.4

3/8

8.0

7.9

75.0

80.0

69.5

88.2

7/16

9.4

9.3

73.7

80.0

69.0

88.8

1/2

10.7

10.5

73.8

81.2

69.0

88.2

9/16

12.3

12.0

73.4

84.4

69.0

88.2

5/8

13.7

13.5

73.5

80.3

69.6

88.5

3/4

16.7

16.5

72.3

78.4

69.6

88.3

7/8

19.5

19.3

75.4

80.9

70.1

88.4

1

22.4

22.0

73.8

83.6

71.0

88.2

11/8

25.0

24.8

76.9

81.3

72.0

88.4

11/4

28.3

28.0

74.3

80.7

72.0

88.4

13/8

30.5

30.3

81.6

85.3

73.8

88.6

11/2

33.8

33.5

79.3

84.8

73.8

88.6

15/8

36.0

35.7

81.1

85.7

74.8

88.3

13/4

39.2

39.0

80.7

83.8

74.8

88.3

17/8

41.8

41.5

80.6

84.7

74.7

88.4

2

45.0

44.7

80.2

84.4

74.7

88.4

6、英制管用螺紋(單位:

mm)

管用螺紋尺寸

JISB0203

JISB2301

錐管內螺紋Rc(PT)

平行內螺紋Rp(PS)

錐管內螺紋

計算值

下孔徑

計算值

下孔徑

計算值

下孔徑

1/16

6.230

6.2

6.490

6.5

1/8

8.235

8.2

8.495

8.5

8.191

8.2

1/4

10.941

10.9

11.341

11.4

10.945

10.9

3/8

14.428

14.4

14.846

14.9

14.388

14.4

1/2

17.950

18

18.489

18.5

17.943

18

3/4

23.349

23

23.975

24

23.305

23

1

29.423

29

30.111

30

29.353

29

11/4

37.940

38

38.772

39

37.890

38

11/2

43.833

44

44.565

45

43.720

43

2

55.412

55

56.476

56

55.406

55

21/2

70.701

71

72.009

72

70.788

70

3

83.201

83

84.709

85

83.364

83

31/2

95.547

96

97.155

97

95.747

95

4

107.834

108

109.855

110

108.322

108

5

133.110

133

135.255

135

133.597

133

6

158.510

159

160.655

161

158.810

158

7

183.360

183

185.954

186

8

208.560

209

211.354

212

9

233.960

234

236.754

237

10

259.166

259

262.154

262

12

309.747

310

312.875

313

7、美制管用耐密斜行螺紋(NPTF‧NPSF)(單位:

mm)

管用螺紋尺寸

斜行螺紋(NPTF)

平行螺紋(NPSF)

鑽頭直徑

鑽頭直徑

使用鉸刀場合

不使用鉸刀場合

1/16

0.234(5.94)

0.246(6.25)

1/4

0.250(6.35)

1/8

21/64

0.328(8.33)

0.339(8.61)

11/32

0.344(8.74)

1/4

27/64

0.422(10.72)

7/16

0.438(11.13)

0.444(11.28)

3/8

9/16

0.562(14.27)

37/64

0.578(14.68)

37/64

0.578(14.68)

1/2

11/16

0.688(17.48)

45/

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