How to Repair a Bifold Door Top Pivot The top pivot of the bifold closet door could become loose and scrape the floor. It is possible to fix this by loosening the set screw for the top bracket a bit. The pivot pin on the top is a metal screw https://bifolddoorrepair11933.ssnblog.com/30062144/a-new-trend-in-bi-fold-door-repairs