I may regret asking this but what do you mean when you said it wasn't tapped deep enough? I'm picturing you taking your index finger and lightly tapping on the faucet. I don't suppose that would help much lol. Obviously I couldn't have fixed that so I'm impressed.
The screw that holds the handle on tight did not have threads deep enough. I had to run a tap in the threads so I could tighten the handle.