Heavy Hex Nut Dimension Heavy Hex Nut Side Heavy Thin Hex Nut
Heavy Hex Nut and Heavy Hex Jam Nut Dimensions
Nominal
Size
F G H H1
Width
Across
Flats
Width
Across
Corners
Thickness
Heavy Hex Nuts
Thickness
Heavy Hex Jam Nuts
Basic Max Min Max Min Basic Max Min Basic Max Min
1/4 1/2 0.500 0.488 0.577 0.556 15/64 0.250 0.218 11/64 0.188 0.156
5/16 9/16 0.562 0.546 0.650 0.622 19/64 0.314 0.280 13/64 0.220 0.186
3/8 11/16 0.688 0.669 0.794 0.763 23/64 0.377 0.341 15/64 0.252 0.216
7/16 3/4 0.750 0.728 0.866 0.830 27/64 0.441 0.403 17/64 0.285 0.247
1/2 7/8 0.875 0.850 1.010 0.969 31/64 0.504 0.464 19/64 0.317 0.277
9/16 15/16 0.938 0.909 1.083 1.037 35/64 0.568 0.526 21/64 0.349 0.307
5/8 1 1/16 1.062 1.031 1.227 1.175 39/64 0.631 0.587 23/64 0.381 0.337
3/4 1 1/4 1.250 1.212 1.443 1.382 47/64 0.758 0.710 27/64 0.446 0.398
7/8 1 7/16 1.438 1.394 1.660 1.589 55/64 0.885 0.833 31/64 0.510 0.458
1 1 5/8 1.625 1.575 1.876 1.796 63/64 1.012 0.956 35/64 0.575 0.519

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