Threading: OD Threads
UNC, UNF, and metric outer diameter (OD) threads are available on turned parts.
| UNC threads | Minimum modeled diameter (in.) | Maximum modeled diameter (in.) | 75% hole drill size (in.) | Maximum thread depth (in.) |
|---|---|---|---|---|
| #4-40 | 0.106 | 0.113 | 0.109 | 0.224 |
| #5-40 | 0.119 | 0.126 | 0.122 | 0.250 |
| #6-32 | 0.131 | 0.139 | 0.134 | 0.276 |
| #8-32 | 0.157 | 0.165 | 0.160 | 0.328 |
| #10-24 | 0.182 | 0.191 | 0.185 | 0.380 |
| #12-24 | 0.208 | 0.217 | 0.211 | 0.432 |
| 1/4-20 | 0.241 | 0.251 | 0.245 | 0.500 |
| 5/16-18 | 0.303 | 0.314 | 0.307 | 0.625 |
| 3/8-16 | 0.364 | 0.376 | 0.369 | 0.750 |
| 7/16-14 | 0.426 | 0.439 | 0.431 | 0.875 |
| 1/2-13 | 0.488 | 0.501 | 0.493 | 1.000 |
| 5/8-11 | 0.611 | 0.626 | 0.617 | 1.250 |
| 3/4-10 | 0.735 | 0.751 | 0.742 | 1.500 |
| UNF threads | Minimum modeled diameter (in.) | Maximum modeled diameter (in.) | 75% hole drill size (in.) | Maximum thread depth (in.)* |
|---|---|---|---|---|
| #5-44 | 0.120 | 0.126 | 0.122 | 0.250 |
| #6-40 | 0.132 | 0.139 | 0.135 | 0.276 |
| #8-36 | 0.158 | 0.165 | 0.161 | 0.328 |
| #10-32 | 0.183 | 0.191 | 0.186 | 0.380 |
| #12-28 | 0.209 | 0.217 | 0.212 | 0.432 |
| 1/4-28 | 0.243 | 0.251 | 0.246 | 0.500 |
| 5/16-24 | 0.304 | 0.314 | 0.308 | 0.625 |
| 3/8-24 | 0.367 | 0.376 | 0.370 | 0.750 |
| 7/16-20 | 0.428 | 0.439 | 0.432 | 0.875 |
| 1/2-20 | 0.491 | 0.501 | 0.495 | 1.000 |
| 5/8-18 | 0.615 | 0.626 | 0.619 | 1.250 |
| 3/4-16 | 0.739 | 0.751 | 0.744 | 1.500 |
*Obstruction by other features of your part, lead-in treatments, or fixturing requirements may reduce the maximum depth of threads.
| Metric threads | Minimum modeled diameter (mm) | Maximum modeled diameter (mm) | 75% hole drill size (mm) | Maximum thread depth (mm)* |
|---|---|---|---|---|
| M3.5 x 0.6 | 3.35 | 3.53 | 3.42 | 7.00 |
| M4 x 0.7 | 3.84 | 4.03 | 3.91 | 8.00 |
| M5 x 0.8 | 4.83 | 5.03 | 4.90 | 10.00 |
| M6 x 1.0 | 5.79 | 6.02 | 5.89 | 12.00 |
| M8 x 1.25 | 7.76 | 8.03 | 7.87 | 16.00 |
| M8 x 1.0 | 7.80 | 8.03 | 7.88 | 16.00 |
| M10 x 1.5 | 9.73 | 10.03 | 9.85 | 20.00 |
| M10 x 1.25 | 9.76 | 10.03 | 9.87 | 20.00 |
| M10 x 0.75 | 9.84 | 10.03 | 9.91 | 20.00 |
| M12 x 1.75 | 11.70 | 12.02 | 11.83 | 24.00 |
| M12 x 1.5 | 11.73 | 12.02 | 11.85 | 24.00 |
| M12 x 1.25 | 11.76 | 12.02 | 11.87 | 24.00 |
| M12 x 1.0 | 11.79 | 12.02 | 11.88 | 24.00 |
| M14 x 2.0 | 13.68 | 14.03 | 13.82 | 28.00 |
| M14 x 1.5 | 13.73 | 14.03 | 13.85 | 28.00 |
| M15 x 1.0 | 14.79 | 15.03 | 14.88 | 30.00 |
| M16 x 2.0 | 15.68 | 16.02 | 15.82 | 32.00 |
| M16 x 1.5 | 15.73 | 16.02 | 15.85 | 32.00 |
| M17 x 1.0 | 16.79 | 17.03 | 16.89 | 34.00 |
| M18 x 1.5 | 17.73 | 18.03 | 17.85 | 36.00 |
| M20 x 2.5 | 19.62 | 20.03 | 19.79 | 40.00 |
| M20 x 1.5 | 19.73 | 20.03 | 19.85 | 40.00 |
*Obstruction by other features of your part, lead-in treatments, or fixturing requirements may reduce the maximum depth of threads.
