Plumb-heads-- what do I need to replace a shower stem?

[cbelt3]

Black- since this is a rental unit and you're worried about your tenants tearing the nipple off again, you might want to consider plumber's putty, which hardens a bit tighter than the usual hand pulling tenant can handle. Of course if they're using heavy tools, it won't matter a bit. Alternatively cut a hole, solder the damn thing on there, and fill in the hole.