How to Repair a Bifold Door Top Pivot The top pivot of bifold doors can become loose and scratch the floor. It is possible to fix this by loosening the set screw on the top bracket a bit. The top pivot pin is made of a screw made of metal https://bifold-door-roller-replac32429.blogitright.com/30810853/20-things-you-must-be-educated-about-bi-fold-door-repairs