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Hexagon Head Bolts-black

ASME B 18.2.1 - 1996

Display drawing:

Screw Thread 1/4 5/16 3/8 7/16 1/2 5/8 3/4 7/8 1 1-1/4 1-3/8 1-1/2 1-3/4 2 2-1/4 2-1/2 2-3/4 3 3-1/4 3-1/2 3-3/4 4 1-1/8
D 0.25 0.3125 0.375 0.4375 0.5 0.625 0.75 0.875 1 1.25 1.375 1.5 1.75 2 2.25 2.5 2.75 3 3.25 3.5 3.75 4 1.125
PP 20 18 16 14 13 11 10 9 8 7 6 6 5 4.5 4.5 4 4 4 4 4 4 4 7
Ds Max 0.26 0.324 0.388 0.452 0.515 0.642 0.768 0.895 1.022 1.277 1.404 1.531 1.785 2.039 2.305 2.559 2.827 3.081 3.335 3.589 3.858 4.111 1.149
Ds Min 0.237 0.298 0.36 0.421 0.482 0.605 0.729 0.852 0.976 1.223 1.345 1.47 1.716 1.964 2.214 2.461 2.711 2.961 3.210 3.461 3.726 3.975 1.098
S Max 0.438 0.5 0.562 0.625 0.75 0.938 1.125 1.312 1.5 1.875 2.062 2.25 2.625 3 3.375 3.75 4.125 4.500 4.875 5.250 5.625 6.000 1.688
S Min 0.425 0.484 0.544 0.603 0.725 0.906 1.088 1.269 1.45 1.812 1.994 2.175 2.538 2.9 3.262 3.625 3.988 4.350 4.712 5.075 5.437 5.800 1.631
E Max 0.505 0.577 0.65 0.722 0.866 1.083 1.299 1.516 1.732 2.165 2.382 2.598 3.031 3.464 3.897 4.33 4.763 5.196 5.629 6.062 6.495 6.928 1.949
E Min 0.484 0.552 0.62 0.687 0.826 1.033 1.24 1.447 1.653 2.066 2.273 2.48 2.893 3.306 3.719 4.133 4.546 4.959 5.372 5.786 6.198 6.612 1.859
K Max 0.188 0.235 0.268 0.316 0.364 0.444 0.524 0.604 0.7 0.876 0.94 1.036 1.196 1.388 1.548 1.708 1.869 2.060 2.251 2.380 2.572 2.764 0.78
K Min 0.15 0.195 0.226 0.272 0.302 0.378 0.455 0.531 0.591 0.749 0.81 0.902 1.054 1.175 1.327 1.479 1.632 1.815 1.936 2.057 2.241 2.424 0.658
R Max 0.03 0.03 0.03 0.03 0.03 0.06 0.06 0.06 0.09 0.09 0.09 0.09 0.12 0.12 0.19 0.19 0.19 0.190 0.190 0.190 0.190 0.190 0.09
R Min 0.01 0.01 0.01 0.01 0.01 0.02 0.02 0.02 0.03 0.03 0.03 0.03 0.04 0.04 0.06 0.06 0.06 0.060 0.060 0.060 0.060 0.060 0.03
B L≤6 0.75 0.875 1 1.125 1.25 1.5 1.75 2 2.25 2.75 3 3.25 3.75 4.25 4.75 5.25 5.75 None None None None None 2.5
B L>6 1 1.125 1.25 1.375 1.5 1.75 2 2.25 2.5 3 3.25 3.5 4 4.5 5 5.5 6 6.500 7.000 7.500 8.000 8.500 2.75