Every single one of them, either the nut was loose or it was loose in the fastener - none of that really worked as it should. You know, stick it in the hole, twist the screw, and the clasp compresses to hold tight. Not as much. Attention everyone, think twice about using this junk before you tear down a wall in your $300,000 RV. The only reason I bought them was because I was working with a thin wall and thought they would actually work. They don't. they are garbage. And not worth the time of day. Did I mention they're trash?