ABMA Lock-Nut Number Minimum Value of Major Diameter Threads (inch) Number per inch Threads Outside Diameter Ø D (inch) Maximum Thickness W (inch) Face Outside Diameter Ø D-2 (inch) Radius r (inch)
N-00 0.391 32 0.755 0.229 0.625 0.047
N-01 0.469 32 0.880 0.323 0.719 0.047
N-02 0.586 32 1.005 0.323 0.813 0.047
N-03 0.664 32 1.130 0.354 0.938 0.047
N-04 0.781 32 1.380 0.385 1.125 0.047
N-05 0.969 32 1.568 0.416 1.281 0.047
N-06 1.173 18 1.755 0.416 1.500 0.047
TN-065 1.312 18 2.068 0.448 1.813 0.063
TN-07 1.376 18 2.068 0.448 1.813 0.063
TN-08 1.563 18 2.255 0.448 2.000 0.063
TN-09 1.767 18 2.536 0.448 2.281 0.063
TN-10 1.967 18 2.693 0.510 2.438 0.063
TN-11 2.157 18 2.974 0.510 2.656 0.063
TN-12 2.360 18 3.161 0.541 2.844 0.063
TN-13 2.548 18 3.380 0.537 3.063 0.094
TN-14 2.751 18 3.630 0.573 3.313 0.094
TAN-15 2.933 12 3.880 0.604 3.563 0.094
TAN-16 3.137 12 4.161 0.604 3.844 0.094
TAN-17 3.340 12 4.411 0.635 4.031 0.094
TAN-18 3.527 12 4.661 0.698 4.281 0.094
TAN-19 3.730 12 4.943 0.729 4.562 0.125
TAN-20 3.918 12 5.193 0.760 4.813 0.125
TAN-21 4.122 12 5.443 0.760 5.000 0.125
TAN-22 4.325 12 5.724 0.791 5.281 0.125
TAN-24 4.716 12 6.130 0.823 5.688 0.125
TAN-26 5.106 12 6.755 0.885 6.188 0.125
TAN-128 5.497 12 7.059 1.198 6.531 0.125
TAN-130 5.888 12 7.693 1.260 7.063 0.125
TAN-132 6.284 8 8.068 1.291 7.438 0.156
TAN-134 6.659 8 8.661 1.354 8.031 0.156
TAN-136 7.066 8 9.060 1.416 8.375 0.156
TAN-138 7.472 8 9.474 1.416 8.781 0.156
TAN-140 7.847 8 9.849 1.510 9.156 0.156