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 on the top bracket. The top pivot pin is a screw made of metal that is inserted into a plastic https://bi-folddoorrepairsnearme00189.bloggactivo.com/30169299/10-websites-to-help-you-be-a-pro-in-bi-fold-door-repairs