材质 
1/4
20
0.438
0.425
0.505
0.484
0.188
0.15
5/16
18
0.5
0.484
0.577
0.522
0.235
0.195
3/8
16
0.562
0.544
0.65
0.62
0.268
0.226
7/16
14
0.625
0.603
0.722
0.687
0.316
0.272
1/2
13
0.75
0.725
0.866
0.826
0.364
0.302
5/8
11
0.938
0.906
1.083
1.033
0.444
0.378
3/4
10
1.125
1.088
1.299
1.24
0.524
0.455
7/8
9
1.312
1.269
1.516
1.447
0.604
0.531
1
8
1.5
1.45
1.732
1.653
0.7
0.591
1-1/8
7|8
1.688
1.631
1.949
1.859
0.78
0.658
1-1/4
7|8
1.875
1.812
2.165
2.066
0.876
0.749
1-3/8
6|8
2.062
1.994
2.382
2.273
0.94
0.81
1-1/2
6|8
2.25
2.175
2.598
2.48
1.036
0.902
1-3/4
5|8
2.625
2.538
3.031
2.893
1.196
1.054
2
4.5|8
3
2.9
3.464
3.306
1.388
1.175
2-1/4
4.5|8
3.375
3.262
3.897
3.719
1.548
1.327
2-1/2
4|8
3.75
3.625
4.33
4.133
1.708
1.479
2-3/4
4|8|18
4.125
3.988
4.763
4.546
1.869
1.632
3
4|8
4.5
4.35
5.196
4.959
2.06
1.815
3-1/4
4
4.875
4.712
5.629
5.372
2.251
1.936
3-1/2
4
5.25
5.075
6.062
5.786
2.38
2.057
3-3/4
4|12
5.625
5.437
6.495
6.198
2.572
2.241
4
4
6
5.8
6.928
6.612
2.764
2.424