Heavy Hex Nut Dimensions
| Bolt Diam. | F | C | H | Weight (lbs.) |
Part Numbers | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Width Across Flats | Width Across Corners | Thickness | A563A | A1942H | A563DH | ||||||||||||||
| Import | Domestic | Import | Domestic | ||||||||||||||||
| Basic | Max | Min | Max | Min | Basic | Max | Min | Plain | Galv. | Plain | Galv. | Plain | Galv. | Plain | Galv. | ||||
| 1⁄2 | 7⁄8 | 0.875 | 0.850 | 1.010 | 0.969 | 31⁄64 | 0.504 | 0.464 | 0.07 | 11729 | 11730 | - | - | 11761 | 11762 | 16356 | 18345 | ||
| 5⁄8 | 11⁄16 | 1.062 | 1.031 | 1.227 | 1.175 | 39⁄64 | 0.631 | 0.587 | 0.12 | 11731 | 11732 | 16358 | 16359 | 11763 | 11764 | - | 18346 | ||
| 3⁄4 | 11⁄4 | 1.250 | 1.212 | 1.443 | 1.382 | 47⁄64 | 0.758 | 0.710 | 0.20 | 11733 | 11734 | 16360 | 16361 | 11765 | 11766 | - | 18347 | ||
| 7⁄8 | 17⁄16 | 1.438 | 1.394 | 1.660 | 1.589 | 55⁄64 | 0.885 | 0.833 | 0.30 | 11735 | 11736 | 16362 | 16363 | 11767 | 11768 | - | 18348 | ||
| 1 | 15⁄8 | 1.625 | 1.575 | 1.876 | 1.796 | 63⁄64 | 1.012 | 0.956 | 0.43 | 11737 | 11738 | 16364 | 16365 | 11769 | 11770 | - | 18349 | ||
| 11⁄8 | 113⁄16 | 1.812 | 1.756 | 2.093 | 2.002 | 17⁄64 | 1.139 | 1.079 | 0.59 | 11739 | 11740 | 16366 | - | 11771 | 11772 | - | 16367 | ||
| 11⁄4 | 2 | 2.000 | 1.938 | 2.309 | 2.209 | 17⁄32 | 1.251 | 1.187 | 0.79 | 11741 | 11742 | 16370 | - | 11773 | 11774 | - | 16371 | ||
| 13⁄8 | 23⁄16 | 2.188 | 2.119 | 2.526 | 2.416 | 111⁄32 | 1.378 | 1.310 | 1.02 | 11743 | 11744 | 16374 | - | 11775 | 11776 | - | 16375 | ||
| 11⁄2 | 23⁄8 | 2.375 | 2.300 | 2.742 | 2.622 | 115⁄32 | 1.505 | 1.433 | 1.31 | 11745 | 11746 | 16378 | - | 11777 | 11778 | - | 16379 | ||
| 15⁄8 | 29⁄16 | 2.562 | 2.481 | 2.959 | 2.828 | 119⁄32 | 1.632 | 1.556 | 1.62 | 17750 | 17751 | 16380 | 16381 | 11779 | 11780 | 16380 | 16381 | ||
| 13⁄4 | 23⁄4 | 2.750 | 2.662 | 3.175 | 3.035 | 123⁄32 | 1.759 | 1.679 | 2.04 | 11747 | 11748 | 16384 | 16385 | 12549 | 12550 | 16384 | 16385 | ||
| 17⁄8 | 215⁄16 | 2.938 | 2.844 | 3.392 | 3.242 | 127⁄32 | 1.886 | 1.802 | 2.41 | 19433 | 19434 | - | - | - | - | - | - | ||
| 2 | 31⁄8 | 3.125 | 3.025 | 3.608 | 3.449 | 131⁄32 | 2.013 | 1.925 | 2.99 | 11749 | 11750 | 16390 | 16391 | 11783 | 11784 | 16390 | 16391 | ||
| 21⁄4 | 31⁄2 | 3.500 | 3.388 | 4.041 | 3.862 | 213⁄64 | 2.251 | 2.155 | 4.19 | 11751 | 11752 | 16396 | 16397 | 12681 | 12682 | 16396 | 16397 | ||
| 21⁄2 | 37⁄8 | 3.875 | 3.750 | 4.474 | 4.275 | 229⁄64 | 2.505 | 2.401 | 5.64 | 11753 | 11754 | 16398 | 16399 | 12553 | 12554 | 16398 | 16399 | ||
| 23⁄4 | 41⁄4 | 4.250 | 4.112 | 4.907 | 4.688 | 245⁄64 | 2.759 | 2.647 | 7.38 | 15864 | 16041 | 16400 | 16401 | 12555 | 12556 | 16400 | 16401 | ||
| 3 | 45⁄8 | 4.625 | 4.475 | 5.340 | 5.102 | 261⁄64 | 3.013 | 2.893 | 9.50 | 15863 | 16042 | 16402 | 16403 | 12601 | 12602 | 16402 | 16403 | ||
| 31⁄4 | 5 | 5.000 | 4.838 | 5.774 | 5.515 | 33⁄16 | 3.252 | 3.124 | 11.94 | 18395 | - | - | - | - | - | - | - | ||
| 31⁄2 | 53⁄8 | 5.375 | 5.200 | 6.207 | 5.928 | 37⁄16 | 3.506 | 3.370 | 15.26 | 18495 | - | - | - | - | - | - | - | ||
| 33⁄4 | 53⁄4 | 5.750 | 5.562 | 6.640 | 6.341 | 311⁄16 | 3.760 | 3.616 | 18.12 | - | - | - | - | - | - | - | - | ||
| 4 | 61⁄8 | 6.125 | 5.925 | 7.073 | 6.755 | 315⁄16 | 4.014 | 3.862 | 21.80 | 11755 | 11756 | 16404 | 16405 | - | - | 16404 | 16405 | ||
|
Dimensions per ASME B18.2.2 1987 (1999) |
|||||||||||||||||||