| Nominal Size or Basic Major Diameter of Thread | F | G | B | H | K | J | ||||||||||
| Width Across Flats | Width Across Corners | Flange Diameter | Nut Thickness | Wrenching Length | Flange Thickness | |||||||||||
| Max. | Min. | Max. | Min. | Max. | Min. | Max. | Min. | Min. | Max. | |||||||
|
0.312 0.344 0.375 |
0.302 0.334 0.365 |
0.361 0.397 0.433 |
0.342 0.381 0.416 |
0.422 0.469 0.500 |
0.406 0.452 0.480 |
0.171 0.203 0.219 |
0.156 0.187 0.203 |
0.10 0.13 0.13 |
0.02 0.02 0.03 |
||||||
|
0.438 0.438 0.500 |
0.428 0.428 0.489 |
0.505 0.505 0.577 |
0.488 0.488 0.557 |
0.594 0.594 0.680 |
0.574 0.574 0.660 |
0.236 0.236 0.283 |
0.222 0.222 0.268 |
0.14 0.14 0.17 |
0.04 0.04 0.04 |
||||||
|
0.562 0.688 0.750 |
0.551 0.675 0.736 |
0.650 0.794 0.866 |
0.628 0.768 0.840 |
0.750 0.937 1.031 |
0.728 0.910 1.000 |
0.347 0.395 0.458 |
0.330 0.375 0.437 |
0.23 0.26 0.31 |
0.04 0.04 0.05 |
||||||
|
0.938 1.125 |
0.922 1.088 |
1.083 1.299 |
1.051 1.240 |
1.281 1.500 |
1.248 1.460 |
0.569 0.675 |
0.545 0.627 |
0.40 0.46 |
0.05 0.06 |
||||||
