My concern is that the Delta single lever kitchen faucet handle loosens, even though I use about 4 to 5 inches of telflon tape around the small screw/nut that goes into the base of the handle, before it is connected to the ball axis in the faucet housing. I do wrap the teflon tape clockwise, as the screw/nut flat end faces me. Do I need more teflon tape? I do not allow the teflon tape to overlap the flat end of the screw/nut that holds tight, when completely screwed in, to the flattened end of the ball axis that it goes over.

I use that "L" shaped wrench to tighten the screw/nut occasionally, when needed; however, I would guess that I am not doing something correctly, or doing something wrong, because that screw/nut loosens, and maybe there is something that makes it stay tight at the base of the faucet handle?

Thank you for any advice you have.