ASME B 18.2.1 - 2012 Hex Lag Screws [Table 15] (ASTM A307 / F593 / F468)


Unit: inch
Screw Thread
d
10# 1/4 5/16 3/8 7/16 1/2 5/8 3/4 7/8 1 1-1/8 1-1/4
ds max
min
s max
min
e max
min
k max
min
L0 min
r max
min
0.199 0.26 0.324 0.388 0.452 0.515 0.642 0.768 0.895 1.022 1.149 1.277
0.178 0.237 0.298 0.36 0.421 0.482 0.605 0.729 0.852 0.976 1.098 1.223
0.281 0.438 0.5 0.562 0.625 0.75 0.938 1.125 1.312 1.5 1.688 1.875
0.271 0.425 0.484 0.544 0.603 0.725 0.906 1.088 1.269 1.45 1.631 1.812
0.323 0.505 0.577 0.65 0.722 0.866 1.083 1.299 1.516 1.732 1.949 2.165
0.309 0.484 0.552 0.62 0.687 0.826 1.033 1.24 1.447 1.653 1.859 2.066
0.14 0.188 0.235 0.268 0.316 0.364 0.444 0.524 0.604 0.7 0.78 0.876
0.11 0.15 0.195 0.226 0.272 0.302 0.378 0.455 0.531 0.591 0.658 0.749
0.094 0.094 0.125 0.125 0.156 0.156 0.312 0.375 0.375 0.625 0.625 0.625
0.03 0.03 0.03 0.03 0.03 0.03 0.06 0.06 0.06 0.09 0.09 0.09
0.01 0.01 0.01 0.01 0.01 0.01 0.02 0.02 0.02 0.03 0.03 0.03
Alternative history
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