How to Repair a Bifold Door Top Pivot The top pivot could become loose and scrape the floor. You can correct this by loosening the set screw of the top bracket slightly. The top pivot pin is a screw made of metal that is inserted into a cap made of https://bifold-door-replacement34357.verybigblog.com/30180835/20-things-you-need-to-be-educated-about-bi-fold-door-repairs