Originally Posted by
MudPie
I buy tubes with smooth valve stems - easy on & off with the pump head, and no threads for a stem nut.
Some tubes have a threaded base for the nut and the rest of the stem is smooth. That's what I use. Unfortunately, the threads don't come out of the rims I have far enough to thread a nut on it, so it's entirely useless to me. I don't use the caps, either.