Especially for belt clip. This is a plastic case with rubber lining. First, the clamp material is stamped from thin sheet metal with rough edges. I had to give them up. Second, the clip attaches over the rubber so it never gets tight. Third, the plastic casing around the clip should have raised edges so it doesn't twist every time you clip it to your belt. This small screw will quickly rip off the plastic case as it requires constant tightening.