How to Repair a Bifold Door Top Pivot The top pivot of bifold doors can become loose and scratch the floor. This can be fixed by loosening the set screw of the top bracket a bit. The top pivot pin is made of a metal screw which fits into a https://replace-bifold-doors02942.amoblog.com/bi-fold-door-repairs-what-no-one-is-talking-about-52604405