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ASME/ANSI B18.5-3-1998
Round Head Short Square Neck Bolts-Table3
Nom
P
ds max
ds min
dk max
dk min
k max
k min
s max
s min
k1 max
k1 min
r max
1/4
20|28|32
0.26
0.213
0.594
0.563
0.145
0.125
0.26
0.245
0.124
0.093
0.031
5/16
18|24|32
0.324
0.272
0.719
0.688
0.176
0.156
0.324
0.307
0.124
0.093
0.031
3/8
16|24|32
0.388
0.329
0.844
0.782
0.208
0.188
0.388
0.368
0.156
0.125
0.031
7/16
14|20|28
0.452
0.385
0.969
0.907
0.239
0.219
0.452
0.431
0.156
0.125
0.031
1/2
13|20|28
0.515
0.444
1.094
1.032
0.27
0.25
0.515
0.492
0.156
0.125
0.031
5/8
11|18|24
0.642
0.559
1.344
1.219
0.344
0.313
0.642
0.616
0.218
0.187
0.062
3/4
10|16|20
0.768
0.678
1.594
1.469
0.406
0.375
0.768
0.741
0.218
0.187
0.062
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