How to Repair a Bifold Door Top Pivot The top pivot of bifold doors can be loosened and scrape the floor. This can be corrected by loosening the set screw on the top bracket. The top pivot pin is a metal screw which fits into a cap made of plastic https://repairingbifolddoors76709.uzblog.net/it-s-the-next-big-thing-in-bi-fold-door-repairs-44772272