Dimensions
Nominal Size |
Basic Major Diameter of Thread |
F | G | H | Maximum Runout of Bearing Surface to Thread Axis, FIM (Specified Proof Load) |
||||
Width Across Flats | Width Across Corners | Thickness Hex Nuts | |||||||
Min | Max | Min | Max | Min | Max | Up to 150,000 psi | 150,000 psi and Greater | ||
1/4 | 0.2500 | 0.428 | 0.438 | 0.488 | 0.505 | 0.212 | 0.226 | 0.015 | 0.010 |
5/16 | 0.3125 | 0.489 | 0.500 | 0.557 | 0.577 | 0.258 | 0.273 | 0.016 | 0.011 |
3/8 | 0.3750 | 0.551 | 0.563 | 0.628 | 0.650 | 0.320 | 0.337 | 0.017 | 00.012 |
7/16 | 0.4375 | 0.675 | 0.688 | 0.768 | 0.794 | 0.365 | 0.385 | 0.018 | 0.013 |
1/2 | 0.5000 | 0.736 | 0.750 | 0.840 | 0.866 | 0.427 | 0.448 | 0.019 | 0.014 |
9/16 | 0.5625 | 0.861 | 0.875 | 0.982 | 1.010 | 0.473 | 0.496 | 0.020 | 0.015 |
5/8 | 0.6250 | 0.922 | 0.938 | 1.051 | 1.083 | 0.535 | 0.559 | 0.021 | 0.016 |
3/4 | 0.7500 | 1.088 | 1.125 | 1.240 | 1.299 | 0.617 | 0.665 | 0.023 | 0.018 |
7/8 | 0.8750 | 1.269 | 1.312 | 1.447 | 1.516 | 0.724 | 0.776 | 0.025 | 0.020 |
1 | 1.0000 | 1.450 | 1.500 | 1.653 | 1.732 | 0.831 | 0.887 | 0.027 | 0.022 |
1-1/8 | 1.1250 | 1.631 | 1.688 | 1.859 | 1.949 | 0.939 | 0.999 | 0.030 | 0.025 |
1-1/4 | 1.2500 | 1.812 | 1.875 | 2.066 | 2.165 | 1.030 | 1.094 | 0.033 | 0.028 |
1-3/8 | 1.3750 | 1.994 | 2.062 | 2.273 | 2.382 | 1.138 | 1.206 | 0.036 | 0.031 |
1-1/2 | 1.5000 | 2.175 | 2.250 | 2.480 | 2.598 | 1.245 | 1.317 | 0.039 | 0.034 |
1-5/8 | 1.6250 | 2.35 | 2.43 | 2.679 | 2.805 | 1.364 | 1.416 | 0.044 | 0.038 |
1-3/4 | 1.7500 | 2.538 | 2.625 | 2.893 | 3.031 | 1.460 | 1.540 | 0.048 | 0.041 |
1-7/8 | 1.8750 | 2.722 | 2.813 | 3.103 | 3.247 | 1.567 | 1.651 | 0.051 | 0.044 |
2 | 2.0000 | 2.900 | 3.0000 | 3.306 | 3.464 | 1.675 | 1.763 | 0.055 | 0.047 |
2-1/4 | 2.2500 | 3.263 | 3.375 | 3.719 | 3.897 | 1.890 | 1.986 | 0.061 | 0.052 |
2-1/2 | 2.500 | 3.625 | 3.750 | 4.133 | 4.330 | 2.105 | 2.209 | 0.068 | 0.058 |
2-3/4 | 2.7500 | 3.988 | 4.125 | 4.546 | 4.763 | 2.319 | 2.431 | 0.074 | 0.064 |
3 | 3.000 | 4.350 | 4.500 | 4.959 | 5.196 | 2.534 | 2.654 | 0.081 | 0.070 |
3-1/4 | 3.2500 | 4.713 | 4.875 | 5.373 | 5.629 | 2.749 | 2.877 | 0.087 | 0.075 |
3-1/2 | 3.500 | 5.075 | 5.250 | 5.786 | 6.062 | 2.964 | 3.100 | 0.094 | 0.081 |
3-3/4 | 3.7500 | 5.438 | 5.625 | 6.199 | 6.495 | 3.178 | 3.322 | 0.100 | 0.087 |
4 | 4.0000 | 5.800 | 6.000 | 6.612 | 6.928 | 3.393 | 3.545 | 0.107 | 0.093 |