HEX NYLON INSERT LOCKNUTS NU SERIES |
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All Dimensions in Inches | ![]() |
Size | Thickness | Across Flats |
Across Corners |
Prevailing Torque in-lbs. Max. |
Tensile Strength lbs. Min. |
1/4-20 | 0.375 | 0.500 | 0.556 | 30.0 | 6.590 |
5/16-18 | 0.438 | 0.562 | 0.624 | 60.0 | 9.410 |
3/8-16 | 0.547 | 0.688 | 0.763 | 80.0 | 13.900 |
7/16-14 | 0.703 | 0.875 | 0.969 | 150.0 | 20.300 |
1/2-13 | 0.703 | 0.875 | 0.969 | 150.0 | 27.200 |
9/16-12 | 0.797 | 0.938 | 1.037 | 200.0 | 37.800 |
5/8-11 | 0.859 | 1.062 | 1.175 | 300.0 | 44.100 |
3/4-10 | 1.000 | 1.250 | 1.382 | 400.0 | 59.200 |
7/8-9 | 1.125 | 1.438 | 1.589 | 600.0 | 80.100 |
1-8 | 1.281 | 1.625 | 1.796 | 800.0 | 105.000 |
1-1/8-7 | 1.438 | 1.812 | 2.002 | 900.0 | 132.000 |
1-1/4-7 | 1.641 | 2.000 | 2.209 | 1.000.0 | 169.000 |
1-3/8-6 | 1.797 | 2.188 | 2.416 | 1.200.0 | 207.000 |
1-1/2-6 | 1.922 | 2.375 | 2.622 | 1.350.0 | 240.000 |
1-3/4-5 | 2.313 | 2.750 | 3.035 | 1.400.0 | - |
2-4-1/2 | 2.406 | 3.125 | 3.449 | 1.450.0 | - |