| Nominal or Basic Major Dia. of Thread | F | G | H | |||||||||||||
| Width Across Flats | Width Across Corners | Across Corners Thickness | ||||||||||||||
| Basic | Max. | Mm. | Max. | Mm. | Basic | Max. | Mm. | |||||||||
|
7/16 9/16 5/8 3/4 |
0.438 0.562 0.625 0.750 |
0.425 0.547 0.606 0.728 |
0.619 0.795 0.884 1.061 |
0.584 0.751 0.832 1.000 |
7/32 17/64 21/64 3/8 |
0.235 0.283 0.346 0.394 |
0.203 0.249 0.310 0.356 |
||||||||
|
13/16 1 1-1/8 1-5/16 |
0.812 1.000 1.125 1.312 |
0.788 0.969 1.088 1.269 |
1.149 1.414 1.591 1.856 |
1.082 1.330 1.494 1.742 |
7/16 35/64 21/32 49/64 |
0.458 0.569 0.680 0.792 |
0.418 0.525 0.632 0.740 |
||||||||
|
1-1/2 1-7/8 2-1/4 |
1.500 1.875 2.250 |
1.450 1.812 2.175 |
2.121 2.652 3.182 |
1.991 2.458 2.956 |
7/8 1-3/32 1-5/16 |
0.903 1.126 1.348 |
0.847 1.062 1.276 |
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