m/m

in

圓

四角

六角

八角

2.5 -
  3.0

0.038
0.056

0.049
0.071

0.042
0.061

0.040
0.0585

3.175
  3.5

1/8"

0.062
0.075

0.079
0.096

0.069
0.083

0.0655
0.0796

4.0
  4.5

0.099
0.125

0.126
0.159

0.109
0.137

0.104
0.131

4.7625
  5.0

3/16"

0.140
0.154

0.178
0.196

0.154
0.169

0.147
0.162

5.5
  5.0

0.186
0.222

0.237
0.283

0.205
0.245

0.196
0.234

6.350
  7.0

1/4"

0.260
0.302

0.331
0.385

0.287
0.333

0.274
0.318

7.9375
  8.0

5/16"

0.388
0.395

0.495
0.502

0.428
0.435

0.409
0.416

9.0
  9.525

3/8"

0.499
0.559

0.636
0.712

0.551
0.617

0.526
0.589

10
  11

0.617
0.746

0.785
0.950

0.680
0.829

0.650
0.786

11.1125
  12

7/16"

0.761
0.888

0.969
1.130

0.840
0.979

0.803
0.936

12.700
  13

1/2"

0.994
1.042

1.266
1.327

1.096
1.149

1.048
1.099

14
  14.2875

9/16"

1.203
1.259

1.539
1.602

1.332
1.388

1.275
1.327

15
  15.875

5/8"

1.387
1.554

1.766
1.978

1.530
1.713

1.463
1.638

16
  17

1.578
1.782

2.010
2.269

1.740
1.965

1.665
1.880

18
  19

1.998
2.226

2.543
2.834

2.203
2.454

2.107
2.348

19.050
  20

3/4"

2.237
2.466

2.849
3.140

2.467
2.719

2.359
2.601

21
  22

2.719
2.984

3.462
3.799

2.998
3.290

2.867
3.147

22.225
  23

7/8"

3.045
3.262

3.875
4.153

3.358
3.596

3.212
3.440

24
  25

3.551
3.853

4.522
4.906

3.916
4.249

3.746
4.063

25.40
  26

1"

3.978
4.168

5.065
5.307

4.352
4.596

4.195
4.396

28
  28.575

11/2"

4.834
5.034

6.154
6.410

5.329
5.551

5.098
5.309

29
  30

5.185
5.549

6.602
7.065

5.717
6.118

5.468
5.853

31.75
  32

11/4"

6.215
6.313

7.913
8.038

6.853
6.961

6.555
6.659

34
  34.925

13/8"

7.127
7.520

9.075
9.575

7.859
8.292

7.518
7.931

35
  36

7.553
7.990

9.616
10.174

8.328
8.811

7.966
8.428

38
  38.1

11/2"

8.903
8.950

11.335
11.395

9.817
9.868

9.390
9.439

40
  41.275

15/8"

9.865
10.503

12.560
13.373

10.877
11.581

10.405
11.078

42
  44

10.876
11.936

13.847
15.198

11.992
13.162

11.471
12.590

44.45
  45

13/4"

12.181
12.485

15.510
15.896

13.432
13.767

12.848
13.169

46
  47.625

17/8"

13.046
13.983

16.611
17.804

14.385
15.419

13.761
14.749

48
  50

14.025
15.413

18.086
19.625

15.663
16.995

14.982
16.257

50.80
  52

2"

15.910
16.171

20.258
21.226

17.544
18.383

16.781
17.584

53.975
  54

21/8"

17.961
17.978

22.869
22.891

19.805
19.824

18.944
18.963

55
  56

18.650
19.335

23.746
24.618

20.565
21.320

19.671
20.393

57.15
  58

21/4"

20.137
20.740

25.639
26.407

22.204
22.890

21.239
21.876

60
  60.325

23/8"

22.195
22.436

28.260
28.567

24.474
24.740

23.411
23.664

62
  63.5

21/2"

23.700
24.860

30.175
31.653

26.133
27.412

24.997
26.221

65
  66.675

25/8"

26.049
27.408

33.166
34.897

28.723
30.222

27.475
28.908

69.85
  70

23/4"

30.081
30.210

38.300
38.465

33.169
33.312

33.727
31.864

75
  76.2

3"

34.680
35.799

44.156
45.580

38.241
39.473

36.597
37.758