最小尺寸

Min

最大尺寸

Max

最小尺寸

Min

最大尺寸

Max

No.12-32UNEF

4.7

4.7(90%)

4.623

4.826

1 1/4-18 UNEF

30.3

30.4(90%)

30.226

30.556

1/4-32UNEF

5.6

5.6(85%)

5.486

5.690

1 1/4-8 UN

28.5

28.7(90%)

28.321

28.956

5/16-32UNEF

7.1

7.2(85%)

7.087

7.264

1 3/8-18 UNEF

33.5

33.6(85%)

33.401

33.731

3/8-32UNEF

8.7

8.8(85%)

8.651

8.865

1 3/8-8 UN

31.8

31.8(90%)

31.496

32.131

7/16-28UNEF

10.2

10.25(85%)

10.135

10.338

1 1/2-18 UNEF

36.6

36.7(90%)

36.576

36.881

1/2-28UNEF

11.8

11.8(90%)

11.709

11.938

1 1/2-8 UN

35.0

35.0(90%)

34.671

35.306

9/16-24UNEF

13.2

13.3(85%)

13.132

13.386

1 5/8-18 UNEF

39.8

39.9(90%)

39.751

40.081

5/8-24UNEF

14.8

14.9(85%)

14.732

14.986

1 5/8-8 UN

38.2

38.2(90%)

37.846

38.481

3/4-20UNEF

17.8

17.8(90%)

17.678

17.958

1 5/8-12 UN

39.2

39.2(90%)

38.989

39.446

7/8-20UNEF

21.0

21.0(90%)

20.853

21.133

1 3/4-8 UN

41.3

41.3(90%)

41.021

41.656

1-20UNEF

24.1

24.2(85%)

24.028

24.308

1 3/4-12 UN

42.3

41.4(90%)

42.164

42.621

1 1/8-18UNEF

27.2

27.2(90%)

27.051

27.381

2-8 UN

47.8

47.8(85%)

47.371

48.006

1 1/8-8UN

25.5

25.5(90%)

25.146

25.781

2-12 UN

48.6

48.7(90%)

48.514

48.971