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ASME/ANSI B18.9-1-2003
80° Countersunk square neck bolts(Repair head)-Table 1
Nom
P
dk max
dk min
ds max
ds min
e min
k max
k min
s max
s min
5/16
18
0.556
0.496
0.312
0.299
0.417
0.232
0.212
0.325
0.313
3/8
16
0.659
0.584
0.375
0.36
0.491
0.272
0.247
0.387
0.375
7/16
14
0.779
0.689
0.438
0.421
0.58
0.324
0.294
0.45
0.438
1/2
13
0.898
0.793
0.5
0.483
0.668
0.375
0.34
0.515
0.5
9/16
12
1.002
0.882
0.592
0.544
0.732
0.423
0.383
0.578
0.563
5/8
11
1.096
0.976
0.657
0.606
0.819
0.458
0.418
0.64
0.625
3/4
10
1.252
1.132
0.782
0.729
0.996
0.493
0.453
0.765
0.75
7/8
9
1.465
1.309
0.938
0.853
1.16
0.573
0.523
0.906
0.875
1
8
1.653
1.497
1.062
0.976
1.336
0.637
0.587
1.031
1
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