最小尺寸

Min

最大尺寸

Max

No.0-80UNF

1.25

1.30(65%)

1.182

1.305

No.1-72UNF

1.55

1.61(65%)

1.474

1.612

No.2-64UNF

1.85

1.90(65%)

1.756

1.912

No.3-56UNF

2.1

2.17(70%)

2.025

2.197

No.4-48UNF

2.4

2.44(70%)

2.271

2.458

No.5-44UNF

2.7

2.74(70%)

2.551

2.740

No.6-40UNF

2.9

3.02(70%)

2.820

3.022

No.8-36UNF

3.5

3.59(75%)

3.404

3.606

No.10-32UNF

4.1

4.14(80%)

3.963

4.165

No.12-28UNF

4.6

4.70(80%)

4.496

4.724

1/4-28UNF

5.5

5.56(80%)

5.360

5.588

5/16-24UNF

6.9

7.02(80%)

6.782

7.035

3/8-24UNF

8.5

8.61(80%)

8.382

8.636

7/16-20UNF

9.9

10.01(80%)

9.729

10.033

1/2-20UNF

11.5

11.60(80%)

11.329

11.607

9/16-18UNF

12.9

13.07(80%)

12.751

13.081

5/8-18UNF

14.5

14.65(80%)

14.351

14.681

3/4-16UNF

17.5

17.59(85%)

17.323

17.678

7/8-14UNF

20.5

20.6(85%)

20.270

20.675

1-12UNF

23.2

23.5(85%)

23.114

23.571

1 1/8-12UNF

26.5

26.7(80%)

26.289

26.746

1 1/4-12UNF

29.5

29.9(80%)

29.464

29.921

1 3/8-12 UNF

32.8

33.0(85%)

32.639

33.096

1 1/2-12UNF

36.0

36.2(85%)

35.814

36.271