How to Repair a Bifold Door Top Pivot The top pivot of a bifold closet door can be loosened and scrape the floor. You can correct this by loosening the set screw on the top bracket slightly. The top pivot pin is a metal screw which fits into a cap https://bifolddoorrepair11402.theblogfairy.com/30134626/bi-fold-door-repairs-explained-in-less-than-140-characters