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Hex Bolts

ASME B 18.2.1 - 2010

Display drawing:

Screw Thread 7/8 1 1-1/8 3-1/4 3-1/2 5/16 3/8 1-3/4 4 7/16 1/2 5/8 3/4 1-3/8 1-1/2 1-5/8 2 2-1/4 2-1/2 2-3/4 3-3/4 1-7/8 3 1/4 1-1/4
D 0.875 1 1.125 3.25 3.5 0.3125 0.375 1.75 4 0.4375 0.5 0.625 0.75 1.375 1.5 1.625 2 2.25 2.5 2.75 3.75 1.875 3 0.25 1.25
P 9 8 7 4 4 18 16 5 4 14 13 11 10 6 6 12 4.5 4.5 4 4 4 12 4 20 7
Ds Max 0.895 1.022 1.149 3.335 3.589 0.324 0.388 1.785 4.111 0.452 0.515 0.642 0.768 1.404 1.531 1.658 2.039 2.305 2.559 2.827 3.858 1.912 3.081 0.26 1.277
Ds Min 0.852 0.976 1.098 3.21 3.461 0.298 0.36 1.716 3.975 0.421 0.482 0.605 0.729 1.345 1.47 1.591 1.964 2.214 2.461 2.711 3.726 1.839 2.961 0.237 1.223
S Nominal 1-5/16 1-1/2 1-11/16 4-7/8 5-1/4 1/2 9/16 2-5/8 6 5/8 3/4 15/16 1-1/8 2-1/16 2-1/4 2-7/16 3 3-3/8 3-3/4 4-1/8 5-5/8 2-13/16 4-1/2 7/16 1-7/8
S Max 1.312 1.5 1.688 4.875 5.25 0.5 0.562 2.625 6 0.625 0.75 0.938 1.125 2.062 2.25 2.438 3 3.375 3.75 4.125 5.625 2.812 4.5 0.438 1.875
S Min 1.269 1.45 1.631 4.712 5.075 0.484 0.544 2.538 5.8 0.603 0.725 0.906 1.088 1.994 2.175 2.356 2.9 3.262 3.625 3.988 5.437 2.719 4.35 0.425 1.812
E Max 1.516 1.732 1.949 5.629 6.062 0.577 0.650 3.031 6.928 0.722 0.866 1.083 1.299 2.382 2.598 2.815 3.464 3.897 4.330 4.763 6.495 3.248 5.196 0.505 2.165
E Min 1.447 1.653 1.859 5.372 5.786 0.552 0.620 2.893 6.612 0.687 0.826 1.033 1.240 2.273 2.480 2.616 3.306 3.719 4.133 4.546 6.198 3.099 4.959 0.484 2.066
K Nominal 37/64 43/64 3/4 2-3/16 2-5/16 7/32 1/4 1-5/32 2-11/16 19/64 11/32 27/64 1/2 29/32 1 1-3/32 1-11/32 1-1/2 1-21/32 1-13/16 2-1/2 1-1/4 2 11/64 27/32
K Max 0.604 0.7 0.78 2.251 2.38 0.235 0.268 1.196 2.764 0.316 0.364 0.444 0.524 0.94 1.036 1.116 1.388 1.548 1.708 1.869 2.572 1.276 2.06 0.188 0.876
K Min 0.531 0.591 0.658 1.936 2.057 0.195 0.226 1.054 2.424 0.272 0.302 0.378 0.455 0.81 0.902 0.978 1.175 1.327 1.479 1.632 2.241 1.13 1.815 0.15 0.749
R Max 0.060 0.090 0.090 0.190 0.190 0.030 0.030 0.120 0.190 0.030 0.030 0.060 0.060 0.090 0.090 0.090 0.120 0.190 0.190 0.190 0.190 0.120 0.190 0.030 0.090
R Min 0.020 0.030 0.030 0.060 0.060 0.010 0.010 0.040 0.060 0.010 0.010 0.020 0.020 0.030 0.030 0.030 0.040 0.060 0.060 0.060 0.060 0.040 0.060 0.010 0.030
B L≤6 2 2.25 2.5 6.75 7.25 0.875 1 3.75 8.25 1.125 1.25 1.5 1.75 3 3.25 3.5 4.25 4.75 5.25 5.75 7.75 4 6.25 0.75 2.75
B L＞6 2.25 2.5 2.75 7 7.5 1.125 1.25 4 8.5 1.375 1.5 1.75 2 3.25 3.5 3.75 4.5 5 5.5 6 8 4.25 6.5 1 3