PG screw thread
The Panzergewinde screw thread, more often called by the shorter name PG screw thread, was a technical standard created in Germany. The standard, codified by the Deutsches Institut für Normung (DIN, German Institute for Standardization), is DIN 40430. Panzergewinde sizes are named with the prefix PG plus a nominal number which approximately corresponds to the maximum cable diameter (in millimeters) that can be passed through the conduit. Because the walls of the conduit are usually relatively thin, the thread depth is limited. Thus a thread angle of 80° is used.
For cable diameter (mm) | Thread size | Major diameter (mm) | Tapping drilling size(mm) | Pitch(mm) |
| 6 | PG 7 | 12.5 | 11.3 | 1.27 |
| 8 | PG 9 | 15.2 | 13.9 | 1.41 |
| 10 | PG 11 | 18.6 | 17.3 | 1.41 |
| 12 | PG 13.5 | 20.4 | 19.1 | 1.41 |
| 14 | PG 16 | 22.5 | 21.2 | 1.41 |
| 18 | PG 21 | 28.3 | 26.8 | 1.59 |
| 25 | PG 29 | 37 | 35.5 | 1.59 |
| 32 | PG 36 | 47 | 45.5 | 1.59 |
| 38 | PG 42 | 54 | 52.5 | 1.59 |
| 43 | PG 48 | 59.3 | 57.8 | 1.59 |
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