How to Repair a Bifold Door Top Pivot The top pivot may become loose and scrape along the floor. It is possible to fix this by loosening the set screw of the top bracket. The top pivot pin is an iron screw that fits into a cap made of plastic https://bifolddoorsrepair36290.bloggazzo.com/29860702/are-you-confident-about-bi-fold-door-repairs-take-this-quiz