美制粗牙（UNC）钢丝螺套参数

美制粗牙（UNC）钢丝螺套参数

美制规格

转换为公制规格

公制规格

公称长度

自由状态圈数

钻头直径

自由状态外径

kXd

mm

N

mm

mm

4-40

2.84X0.635

1d

2.8

3.2

3

3.66~4.04

1.5d

4.3

5.1

2d

5.7

7.2

5-40

3.18X0.635

1d

3.2

3.7

3.4

4.01~4.39

1.5d

4.8

5.9

2d

6.4

8.2

6-32

3.51X0.794

1d

3.5

2.8

3.7

4.52~4.90

1.5d

5.3

4.8

2d

7.0

6.8

8-32

4.17X0.794

1d

4.2

4.0

4.4

5.20~5.56

1.5d

6.3

6.0

2d

8.3

8.7

10-24

4.83X1.058

1d

4.8

3.3

5.1

6.19~6.58

1.5d

7.2

5.4

2d

9.7

7.5

12-24

5.49X1.058

1d

5.5

4.0

5.8

6.86~7.24

1.5d

8.2

6.3

2d

11.0

8.8

1/4-20

6.35X1.270

1d

6.4

3.9

6.7

7.86~8.38

1.5d

9.5

6.2

2d

12.7

8.6

3/8-16

9.53X1.588

1d

9.5

4.8

9.9

11.48~11.99

1.5d

14.3

7.7

2d

19.1

10.6

7/16-14

11.11X1.814

1d

11.1

4.9

11.6

13.36~13.99

1.5d

16.7

7.9

2d

22.2

10.7

1/2-13

12.70X1.954

1d

12.7

5.2

13.1

15.16~15.80

1.5d

19.1

8.3

2d

25.4

11.4

5/8-11

15.88X2.309

1d

15.9

5.7

16.4

18.84~19.48

1.5d

23.8

9.0

2d

31.8

12.3

3/4-10

19.05X2.540

1d

19.1

6.3

19.6

22.36~23.00

1.5d

28.6

9.9

2d

38.1

13.5

1-8

25.4X3.175

1d

25.4

6.8

26.1

29.62~30.38

1.5d

38.1

10.6

2d

50.8

14.5

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