How to Repair a Bifold Door Top Pivot A bifold closet door's top pivot can be loosened and scrape 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-glass-replace05174.bloggazza.com/29970505/a-provocative-rant-about-bi-fold-door-repairs