The thread on the US pole did not match up with the thread on the angle adaptor from the UK, so it too a bit of muscling on and then I had to tape it down.
I was warned that this particular pole may become unlocked and close up on me. If that happens then I will be putting a swivel head on it to reduce that problem.
I made myself a pole in much the same way with the same problem of the threads not being identical, a good tip is to drill a small hole on either side of the brushes collar, push the angle adapter in as best you can and then screw the 2 together with a couple of self tapping screws.