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All dimensions are in millimeters unless otherwise specified.
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The inner diameter (ID) of the nut should be adjusted according to the bolt’s thread diameter and application scenario, to be clearly specified in the order.
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Products can be customized according to customer requirements to suit different application scenarios.
| Thread Size (d) | 6# | 8# | 10# | 12# | 1/4 | 5/16 | 3/8 | 7/16 | 1/2 | 9/16 | 5/8 | 3/4 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| d | 0.1380 | 0.1640 | 0.1900 | 0.2160 | 0.2500 | 0.3125 | 0.3750 | 0.4375 | 0.5000 | 0.5625 | 0.6250 | 0.7500 | |
| PP | UNC | 32 | 32 | 24 | 24 | 20 | 18 | 16 | 14 | 13 | 12 | 11 | 10 |
| UNF | 40 | 36 | 32 | 28 | 28 | 24 | 24 | 20 | 20 | 18 | 18 | 16 | |
| S | Maximum | 0.312 | 0.344 | 0.375 | 0.438 | 0.438 | 0.500 | 0.562 | 0.688 | 0.750 | 0.875 | 0.938 | 1.125 |
| Minimum | 0.302 | 0.334 | 0.365 | 0.428 | 0.428 | 0.489 | 0.551 | 0.675 | 0.736 | 0.861 | 0.922 | 1.088 | |
| e | Maximum | 0.361 | 0.397 | 0.433 | 0.505 | 0.505 | 0.577 | 0.65 | 0.794 | 0.866 | 1.01 | 1.083 | 1.299 |
| Minimum | 0.342 | 0.381 | 0.416 | 0.488 | 0.488 | 0.557 | 0.628 | 0.768 | 0.84 | 0.982 | 1.051 | 1.24 | |
| dc | Maximum | 0.422 | 0.469 | 0.500 | 0.594 | 0.594 | 0.680 | 0.750 | 0.937 | 1.031 | 1.188 | 1.281 | 1.500 |
| Minimum | 0.408 | 0.452 | 0.480 | 0.574 | 0.574 | 0.660 | 0.728 | 0.910 | 1.000 | 1.155 | 1.248 | 1.460 | |
| k | Maximum | 0.171 | 0.203 | 0.219 | 0.236 | 0.236 | 0.283 | 0.347 | 0.395 | 0.458 | 0.506 | 0.569 | 0.675 |
| Minimum | 0.156 | 0.187 | 0.203 | 0.222 | 0.222 | 0.268 | 0.330 | 0.375 | 0.437 | 0.483 | 0.545 | 0.627 | |
| h | Minimum | 0.02 | 0.02 | 0.03 | 0.04 | 0.04 | 0.04 | 0.04 | 0.04 | 0.05 | 0.05 | 0.05 | 0.06 |
