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| Hex Jam Nuts |
| 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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Hex Jam Nuts are used in combination with a finished hex nut to keep the nut from lossening.
A jam nut is typically 2/3'ds the thickness of it's respective hex nut series counterpart. |
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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 |
7/16" |
0.438 |
0.428 |
0.505 |
0.488 |
5/32" |
0.163 |
0.150 |
| 5/16" |
0.3125 |
1/2" |
0.500 |
0.489 |
0.577 |
0.557 |
3/16" |
0.195 |
0.180 |
| 3/8" |
0.3750 |
9/16" |
0.562 |
0.551 |
0.650 |
0.628 |
7/32" |
0.227 |
0.210 |
| 7/16" |
0.4375 |
11/16" |
0.688 |
0.675 |
0.794 |
0.768 |
1/4" |
0.260 |
0.240 |
| 1/2" |
0.5000 |
3/4" |
0.750 |
0.736 |
0.866 |
0.840 |
5/16" |
0.323 |
0.302 |
| 9/16" |
0.5625 |
7/8" |
0.875 |
0.861 |
1.010 |
0.982 |
5/16" |
0.324 |
0.301 |
| 5/8" |
0.6250 |
15/16" |
0.938 |
0.922 |
1.083 |
1.051 |
3/8" |
0.387 |
0.363 |
| 3/4" |
0.7500 |
1-1/8" |
1.125 |
1.088 |
1.299 |
1.240 |
27/64" |
0.446 |
0.398 |
| 7/8" |
0.8750 |
1-5/16" |
1.312 |
1.269 |
1.516 |
1.447 |
31/64" |
0.510 |
0.458 |
| 1" |
1.0000 |
1-1/2" |
1.500 |
1.450 |
1.732 |
1.653 |
35/64" |
0.575 |
0.519 |
| 1-1/8" |
1.1250 |
1-11/16" |
1.688 |
1.631 |
1.949 |
1.859 |
39/64" |
0.639 |
0.579 |
| 1-1/4" |
1.2500 |
1-7/8" |
1.875 |
1.812 |
2.165 |
2.066 |
23/32" |
0.751 |
0.687 |
| 1-3/8" |
1.3750 |
2-1/16" |
2.062 |
1.994 |
2.382 |
2.273 |
25/32" |
0.815 |
0.747 |
| 1-1/2" |
1.5000 |
2-1/4" |
2.250 |
2.175 |
2.598 |
2.480 |
27/32" |
0.880 |
0.808 |
| 1-3/4" |
1.7500 |
2-5/8" |
2.625 |
2.538 |
3.031 |
2.893 |
31/32" |
1.009 |
0.929 |
| 2" |
2.0000 |
3" |
3.000 |
2.900 |
3.464 |
3.306 |
1-3/32" |
1.138 |
1.050 |
| 2-1/4" |
2.2500 |
3-1/2" |
3.500 |
3.388 |
4.041 |
3.862 |
1-13/64" |
1.251 |
1.155 |
| 2-1/2" |
2.5000 |
3-7/8" |
3.875 |
3.750 |
4.474 |
4.275 |
1-29/64" |
1.505 |
1.401 |
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