Hex Heavy Jam Nut (in)

Written by Matt Milbury. Posted in Nut Datasheets

Standards

  • ASME Standards
    • ASME B18.2.2 - Square and Hex Nuts

Hex Heavy Jam Nut (in) Datasheet

hex finished jam nut drawinghex finished jam nut

Bolt

Size

Width Across Flat

A

Width Across Corner

B

Thickness

C

BasicMaxMinMaxMinBasicMaxMin
3/8 11/16 0.688 0.669 0.794 0.763 15/64 0.252 0.216
1/2 7/8 0.875 0.850 1.010 0.969 19/64 0.317 0.277
5/8 1 1/16 1.062 1.031 1.227 1.175 23/64 0.381 0.337
3/4 1 1/4 1.250 1.212 1.443 1.382 27/64 0.446 0.398
7/8 1 7/16 1.438 1.394 1.660 1.589 31/64 0.510 0.458
1 1 5/8 1.625 1.575 1.876 1.796 35/64 0.575 0.519
1 1/8 1 13/16 1.812 1.756 2.093 2.002 39/64 0.639 0.579
1 1/4 2 2.000 1.938 2.309 2.209 23/32 0.751 0.687
1 3/8 2 13/16 2.188 2.119 2.526 2.416 25/32 0.815 0.747
1 1/2 2 3/8 2.375 2.300 2.742 2.622 27/32 0.880 0.808
1 5/8 2 9/16 2.562 2.481 2.959 2.828 29/32 0.944 0.868
1 3/4 2 3/4 2.750 2.662 3.175 3.035 31/32 1.009 0.929
1 7/8 2 15/16 2.938 2.844 3.392 3.242 1 1/32 1.073 0.989
2 3 1/8 3.125 3.025 3.608 3.449 1 3/32 1.138 1.050
2 1/4 3 1/2 3.500 3.388 4.041 3.862 1 13/64 1.251 1.155
2 1/2 3 7/8 3.875 3.750 4.474 4.275 1 29/64 1.505 1.401
2 3/4 4 1/4 4.250 4.112 4.907 4.688 1 37/64 1.634 1.522
3 4 5/8 4.625 4.475 5.340 5.102 1 45/64 1.763 1.643
3 1/4 5 5.000 4.838 5.774 5.515 1 13/16 1.876 1.748
3 1/2 5 3/8 5.375 5.200 6.207 5.928 1 15/16 2.006 1.870
3 3/4 5 3/4 5.750 5.562 6.640 6.341 2 1/16 2.134 1.990
4 6 1/8 6.125 5.925 7.073 6.755 2 3/16 2.264 2.112