This method is honestly the quickest and easiest I have ever used.
No metal drilling at all. Made one on Sunday in about 20 minutes.
I got a length of threaded rod with a nyloc nut on the end and dropped this down the pole to ensure the nut was wedged well.
Didn't like the idea of just letting a tight fit on the wedge deal with the head twisting so I filed 4 teeth into the end of the pole.
Then I drilled the head only on one side so that the teeth bite into the hdpe held under pressure by the bolt which I countersunk.
The fit is very tight and the teeth grip well into the pipe.
This method is honestly the quickest and easiest I have ever used.
No metal drilling at all. Made one on Sunday in about 20 minutes.
I got a length of threaded rod with a nyloc nut on the end and dropped this down the pole to ensure the nut was wedged well.
Didn't like the idea of just letting a tight fit on the wedge deal with the head twisting so I filed 4 teeth into the end of the pole.
Then I drilled the head only on one side so that the teeth bite into the hdpe held under pressure by the bolt which I countersunk.
The fit is very tight and the teeth grip well into the pipe.
A few months down the line and no twisty-twisty.