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ASME/ANSI B18.2.1-6-2012
Hex cap screws-Table6
Nom
P
ds max
ds min
s max
s min
e max
e min
k max
k min
1/4
20|28|32
0.25
0.245
0.438
0.428
0.505
0.488
0.163
0.15
5/16
18|24|32
0.3125
0.3065
0.5
0.489
0.577
0.557
0.211
0.195
3/8
16|24|32
0.375
0.369
0.562
0.551
0.65
0.628
0.243
0.226
7/16
14|20|28
0.4375
0.4305
0.625
0.612
0.722
0.698
0.291
0.272
1/2
13|20|28
0.5
0.493
0.75
0.736
0.866
0.84
0.323
0.302
9/16
12|18|24
0.5625
0.5545
0.812
0.798
0.938
0.91
0.371
0.348
5/8
11|18|24
0.625
0.617
0.938
0.922
1.083
1.051
0.403
0.378
3/4
10|16|20
0.75
0.741
1.125
1.1
1.299
1.254
0.483
0.455
7/8
9|14|20
0.875
0.866
1.312
1.285
1.516
1.465
0.563
0.531
1
8|12|20
1
0.99
1.5
1.469
1.732
1.675
0.627
0.591
1-1/8
7|12|18
1.125
1.114
1.688
1.631
1.949
1.859
0.718
0.658
1-1/4
7|12|18
1.25
1.239
1.875
1.812
2.165
2.066
0.813
0.749
1-3/8
6|12|18
1.375
1.363
2.062
1.994
2.382
2.273
0.878
0.81
1-1/2
6|12|18
1.5
1.488
2.25
2.175
2.598
2.48
0.974
0.902
1-5/8
12|18
1.625
1.613
2.438
2.356
2.815
2.686
1.038
0.962
1-3/4
5|8|12
1.75
1.738
2.625
2.538
3.031
2.893
1.134
1.054
1-7/8
6
1.875
1.863
2.812
2.719
3.248
3.099
1.198
1.114
2
4.5
2
1.988
3
2.9
3.464
3.306
1.263
1.175
2-1/4
4.5
2.25
2.238
3.375
3.262
3.897
3.719
1.423
1.327
2-1/2
4
2.5
2.488
3.75
3.625
4.33
4.133
1.583
1.479
2-3/4
4
2.75
2.738
4.125
3.988
4.763
4.546
1.744
1.632
3
4
3
2.988
4.5
4.35
5.196
4.959
1.935
1.815
Notice:Correct standard information, Feedback.
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