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| Brass Nuts |
| Heavy Hex Nuts |
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| Materials Include: 18-8 ss, 316 ss, 400 series ss, Brass, Silicone Bronze, Monel, Carbon Steels, Alloy Steels, Aluminum. |
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| Finishes Include: Zinc, Cadmium, Nickel Silver & Chrome Plating, Black Oxide, Anodize, Passivation and Heat Treating. |
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| Heavy hex nuts are the strongest of all the comparably-graded nut designs because of its greater length of thread engagement and greater resistance to widening and stretching. |
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F |
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G |
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H |
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| Nominal or |
Basic Major |
Width |
Across |
Flats |
Width Across |
Corners |
Thickness |
of Hex |
Nuts |
| Diameter |
of Thread |
Basic |
Max |
Min |
Max |
Min |
Basic |
Max |
Min |
| 1/4" |
0.2500 |
1/2" |
0.500 |
0.488 |
0.577 |
0.556 |
15/64" |
0.250 |
0.218 |
| 5/16" |
0.3125 |
9/16" |
0.562 |
0.546 |
0.650 |
0.622 |
19/64" |
0.314 |
0.280 |
| 3/8" |
0.3750 |
11/16" |
0.688 |
0.669 |
0.794 |
0.763 |
23/64" |
0.377 |
0.341 |
| 7/16" |
0.4375 |
3/4" |
0.750 |
0.728 |
0.866 |
0.830 |
27/64" |
0.441 |
0.403 |
| 1/2" |
0.5000 |
7/8" |
0.875 |
0.850 |
1.010 |
0.969 |
31/64" |
0.504 |
0.464 |
| 9/16" |
0.5625 |
15/16" |
0.938 |
0.909 |
1.083 |
1.037 |
35/64" |
0.568 |
0.526 |
| 5/8" |
0.6250 |
1-1/16" |
1.062 |
1.031 |
1.227 |
1.175 |
39/64" |
0.631 |
0.587 |
| 3/4" |
0.7500 |
1-1/4" |
1.250 |
1.212 |
1.443 |
1.382 |
47/64" |
0.758 |
0.710 |
| 7/8" |
0.8750 |
1-7/16" |
1.438 |
1.394 |
1.660 |
1.589 |
55/64" |
0.885 |
0.833 |
| 1" |
1.0000 |
1-5/8" |
1.625 |
1.575 |
1.876 |
1.796 |
63/64" |
1.012 |
0.956 |
| 1-1/8" |
1.1250 |
1-13/16" |
1.812 |
1.756 |
2.093 |
2.002 |
1-7/64" |
1.139 |
1.079 |
| 1-1/4" |
1.2500 |
2" |
2.000 |
1.938 |
2.309 |
2.209 |
1-7/32" |
1.251 |
1.187 |
| 1-3/8" |
1.3750 |
2-3/16" |
2.188 |
2.119 |
2.526 |
2.416 |
1-11/32" |
1.378 |
1.310 |
| 1-1/2" |
1.5000 |
2-3/8" |
2.375 |
2.300 |
2.742 |
2.622 |
1-15/32" |
1.505 |
1.433 |
| 1-5/8" |
1.6250 |
2-9/16" |
2.562 |
2.481 |
2.959 |
2.828 |
1-19/32" |
1.632 |
1.556 |
| 1-3/4" |
1.7500 |
2-3/4" |
2.750 |
2.662 |
3.175 |
3.035 |
1-23/32" |
1.759 |
1.679 |
| 2" |
2.0000 |
3-1/8" |
3.125 |
3.025 |
3.608 |
3.449 |
1-31/32" |
2.013 |
1.925 |
| 2-1/4" |
2.2500 |
3-1/2" |
3.500 |
3.388 |
4.041 |
3.862 |
2-13/64" |
2.251 |
2.155 |
| 2-1/2" |
2.5000 |
3-7/8" |
3.875 |
3.750 |
4.474 |
4.275 |
2-29/64" |
2.505 |
2.401 |
| 2-3/4" |
2.7500 |
4-1/4" |
4.250 |
4.112 |
4.907 |
4.688 |
2-45/64" |
2.759 |
2.647 |
| 3" |
3.0000 |
4-5/8" |
4.625 |
4.475 |
5.340 |
5.102 |
2-61/64" |
3.013 |
2.893 |
| 3-1/4" |
3.2500 |
5" |
5.000 |
4.838 |
5.774 |
5.515 |
3-3/16" |
3.252 |
3.124 |
| 3-1/2" |
3.5000 |
5-3/8" |
5.375 |
5.200 |
6.207 |
5.928 |
3-7/16" |
3.506 |
3.370 |
| 3-3/4" |
3.7500 |
5-3/4" |
5.750 |
5.562 |
6.640 |
6.341 |
3-11/16" |
3.760 |
3.616 |
| 4" |
4.0000 |
6-1/8" |
6.125 |
5.925 |
7.073 |
6.755 |
3-15/16" |
4.014 |
3.862 |
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