PG Conduit Thread (Panzergewinde) · DIN 40430
Pg 21 Thread: Pitch, Tap Drill & Dimensions
Pg 21 is a PG Conduit Thread (Panzergewinde) (DIN 40430) size, with a major diameter of 28.3 mm, a pitch of 1.59 mm. The tap drill is 26.8 mm.
| For cable diameter (mm) | 18.0 |
|---|---|
| Major Diameter (mm) | 28.3 |
| Tapping Drill Size | 26.8 |
| Pitch (mm) | 1.59 |
| Threads per inch (TPI) | 15.97 |
| Flank angle | 80° |
Common questions
What size drill do I use to tap Pg 21?
Use a 26.8 drill. This is the standard tap drill for Pg 21; for hard materials or deep threads a slightly larger drill reduces tapping torque.
What is the pitch of Pg 21?
The pitch of Pg 21 is 1.59, meaning the thread advances that distance in one full turn.
Where can I find other PG Conduit Thread (Panzergewinde) sizes?
The full PG Conduit Thread (Panzergewinde) table, with every size and a live filter, is on its standard page, and the Thread Finder searches all 73 standards at once.
Reference values; computed values use the ISO basic profile. Verify against the current standard before production use.