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ASME/ANSI B18.2.1-1-2012
Square head bolts-Table1
Nom
P
ds max
ds min
s max
s min
e max
e min
k max
k min
r max
r min
1/4
20|28|32
0.26
0.237
0.375
0.362
0.53
0.498
0.188
0.156
0.03
0.01
5/16
18|24|32
0.324
0.298
0.5
0.484
0.707
0.665
0.22
0.186
0.03
0.01
3/8
16|24|32
0.388
0.36
0.562
0.544
0.795
0.747
0.268
0.232
0.03
0.01
7/16
14|20|28
0.452
0.421
0.625
0.603
0.884
0.828
0.316
0.278
0.03
0.01
1/2
13|20|28
0.515
0.482
0.75
0.725
1.061
0.995
0.348
0.308
0.03
0.01
5/8
11|18|24
0.642
0.605
0.938
0.906
1.326
1.244
0.444
0.4
0.06
0.02
3/4
10|16|20
0.768
0.729
1.125
1.088
1.591
1.494
0.524
0.476
0.06
0.02
7/8
9|14|20
0.895
0.852
1.312
1.269
1.856
1.742
0.62
0.568
0.06
0.02
1
8|12|20
1.022
0.976
1.5
1.45
2.121
1.991
0.684
0.628
0.09
0.03
1-1/8
7|12|18
1.149
1.098
1.688
1.631
2.386
2.239
0.78
0.72
0.09
0.03
1-1/4
7|12|18
1.277
1.223
1.875
1.812
2.652
2.489
0.876
0.812
0.09
0.03
1-3/8
6|12|18
1.404
1.345
2.062
1.994
2.917
2.738
0.94
0.872
0.09
0.03
1-1/2
6|12|18
1.531
1.47
2.25
2.175
3.182
2.986
1.036
0.964
0.09
0.03
Notice:Correct standard information, Feedback.
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