Email Print Facebook Twitter Google LinkedIn Whatsapp Share

ASME B18.2.2 Hex Nuts

ASME B18.2.2 Hex Nuts

Dimensions for ASME B18.2.2 Hex Nuts

Nominal Size Basic Major
Thread Diameter
Width Across Flats, F Width Across Corners, G Thickness Hex Nuts, H
Min. Max. Min. Max. Min. Max.
1/4 0.25 0.428 0.438 0.488 0.505 0.212 0.226
5/16 0.3125 0.489 0.500 0.557 0.577 0.258 0.273
3/8 0.375 0.551 0.563 0.628 0.650 0.320 0.337
7/16 0.4375 0.675 0.688 0.768 0.794 0.365 0.385
1/2 0.50 0.736 0.750 0.840 0.866 0.427 0.448
9/16 0.5625 0.861 0.875 0.982 1.010 0.473 0.496
5/8 0.625 0.922 0.938 1.051 1.083 0.535 0.559
3/4 0.75 1.088 1.125 1.240 1.299 0.617 0.665
7/8 0.875 1.269 1.312 1.447 1.516 0.724 0.776
1 1.00 1.450 1.500 1.653 1.732 0.831 0.887
1 1/8 1.125 0.631 1.688 1.859 1.949 0.939 0.999
1 1/4 1.25 1.812 1.875 2.066 2.165 1.030 1.094
1 3/8 1.375 2.994 2.062 2.273 2.382 1.138 1.206
1 1/2 1.50 2.175 2.250 2.480 2.598 1.245 1.317
1 5/8 1.625 2.350 2.430 2.679 2.805 1.364 1.416
1 3/4 1.75 2.538 2.625 2.893 3.031 1.460 1.540
1 7/8 1.875 2.722 2.813 3.103 3.247 1.567 1.651
2 2.00 2.900 3.000 3.306 3.464 1.675 1.763
2 1/4 2.25 3.263 3.375 3.719 3.897 1.890 1.986
2 1/2 2.50 3.625 3.750 4.133 4.330 2.105 2.209
2 3/4 2.75 3.988 4.125 2.622 2.742 1.433 1.505
3 3.00 4.350 4.500 4.959 5.196 2.534 2.654
3 1/4 3.25 4.713 4.875 5.373 5.629 2.749 2.877
3 1/2 3.50 5.075 5.250 5.786 6.062 2.964 3.100
3 3/4 3.75 5.438 5.625 6.199 6.495 3.178 3.322
4 4.50 5.800 6.000 6.612 6.928 3.393 3.545