How to Repair a Bifold Door Top Pivot The top pivot could be loosened and scrape the floor. This can be fixed by loosening the set screw for the top bracket a bit. The top pivot pin is a screw made of metal that is inserted into a plastic cap https://bifold-door-roller-replac78047.dreamyblogs.com/30853778/a-productive-rant-concerning-bi-fold-door-repairs