Retired plbg1
Some stores have handles that have a nut on it and tighten it down but might be hard to find. If you can get the name of valve you can get a new stem but you will have to turn off water outsde to install. You can take a piece of copper pipe like 1/2″ and drill a hole that size of stem and fit it and solder it to stem are drill a hole through the pipe and stem and put a small nut and bolt in it.
