Nominal thread dimensions
| Dimension | mm | inch |
|---|---|---|
| Major diameter, d | ||
| Pitch, P | ||
| Threads per inch | ||
| Pitch diameter, d2 | ||
| Minor diameter, internal thread, D1 | ||
| Minor diameter, external thread, d3 | ||
| Thread height, internal | ||
| Thread height, external | ||
| Crest flat width | ||
| Root flat width |