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 | Table 5 Dimensions of Hex Thick Nuts |
| Nominal size or Basic Major Dia of Thread | F | G | H | Runout of Bearing Face,FIM | |||||||
| Width Across Flats | Width Across Coners | Thicness | Specified Proof Load | ||||||||
| Up to 150,000 psi | 150,000 psi and Greater | ||||||||||
| Basic | Max | Min | Max | Min | Basic | Max | Min | Max | |||
| 1/4 | 0.2500 | 7/16 | 0.438 | 0.428 | 0.505 | 0.488 | 9/32 | 0.288 | 0.274 | 0.015 | 0.010 |
| 6.35 | 11.13 | 10.87 | 12.83 | 12.40 | 7.32 | 6.96 | 0.38 | 0.25 | |||
| 5/16 | 0.3125 | 1/2 | 0.500 | 0.489 | 0.577 | 0.557 | 21/64 | 0.336 | 0.320 | 0.016 | 0.011 |
| 7.94 | 12.70 | 12.42 | 14.66 | 14.15 | 8.53 | 8.13 | 0.41 | 0.28 | |||
| 3/8 | 0.3750 | 9/16 | 0.562 | 0.551 | 0.650 | 0.628 | 13/32 | 0.415 | 0.398 | 0.017 | 0.012 |
| 9.53 | 14.27 | 14.00 | 16.51 | 15.95 | 10.54 | 10.11 | 0.43 | 0.30 | |||
| 7/16 | 0.4375 | 11/16 | 0.688 | 0.675 | 0.794 | 0.768 | 29/64 | 0.463 | 0.444 | 0.018 | 0.013 |
| 11.11 | 17.48 | 17.15 | 20.17 | 19.51 | 11.76 | 11.28 | 0.46 | 0.33 | |||
| 1/2 | 0.5000 | 3/4 | 0.750 | 0.736 | 0.866 | 0.840 | 9/16 | 0.573 | 0.552 | 0.019 | 0.014 |
| 12.70 | 19.05 | 18.69 | 22.00 | 21.34 | 14.55 | 14.02 | 0.48 | 0.36 | |||
| 9/16 | 0.5625 | 7/8 | 0.875 | 0.861 | 1.010 | 0.892 | 39/64 | 0.621 | 0.598 | 0.020 | 0.015 |
| 14.29 | 22.23 | 21.87 | 25.65 | 22.66 | 15.77 | 15.19 | 0.51 | 0.38 | |||
| 5/8 | 0.6250 | 15/16 | 0.938 | 0.922 | 1.083 | 1.051 | 23/32 | 0.731 | 0.706 | 0.021 | 0.016 |
| 15.88 | 23.83 | 23.42 | 27.51 | 26.70 | 18.57 | 17.93 | 0.53 | 0.41 | |||
| 3/4 | 0.7500 | 1-1/8 | 1.125 | 1.088 | 1.299 | 1.240 | 13/16 | 0.827 | 0.798 | 0.023 | 0.018 |
| 19.05 | 28.58 | 27.64 | 32.99 | 31.50 | 21.01 | 20.27 | 0.58 | 0.46 | |||
| 7/8 | 0.8750 | 1-5/16 | 1.312 | 1.269 | 1.516 | 1.447 | 29/32 | 0.922 | 0.890 | 0.025 | 0.020 |
| 22.23 | 33.32 | 32.23 | 38.51 | 36.75 | 23.42 | 22.61 | 0.64 | 0.51 | |||
| 1 | 1.0000 | 1-1/2 | 1.500 | 1.450 | 1.732 | 1.653 | 1 | 1.018 | 0.982 | 0.027 | 0.022 |
| 25.40 | 38.10 | 36.83 | 43.99 | 41.99 | 25.86 | 24.94 | 0.69 | 0.56 | |||
| 1-1/8 | 1.1250 | 1-11/16 | 1.688 | 1.631 | 1.949 | 1.859 | 1-5/32 | 1.176 | 1.136 | 0.030 | 0.025 |
| 28.58 | 42.88 | 41.43 | 49.50 | 47.22 | 29.87 | 28.85 | 0.76 | 0.64 | |||
| 1-1/4 | 1.2500 | 1-7/8 | 1.875 | 1.812 | 2.165 | 2.066 | 1-1/4 | 1.272 | 1.228 | 0.033 | 0.028 |
| 31.75 | 47.63 | 46.02 | 54.99 | 52.48 | 32.31 | 31.19 | 0.84 | 0.71 | |||
| 1-3/8 | 1.3750 | 2-1/16 | 2.062 | 1.994 | 2.382 | 2.273 | 1-3/8 | 1.399 | 1.351 | 0.036 | 0.031 |
| 34.93 | 52.37 | 50.65 | 60.50 | 57.73 | 35.53 | 34.32 | 0.91 | 0.79 | |||
| 1-1/2 | 1.5000 | 2-1/4 | 2.250 | 2.175 | 2.598 | 2.480 | 1-1/2 | 1.526 | 1.474 | 0.039 | 0.034 |
| 38.10 | 57.15 | 55.25 | 65.99 | 62.99 | 38.76 | 37.44 | 0.99 | 0.86 | |||
