How to Repair a Bifold Door Top Pivot The top pivot may become loose and scrape along the floor. This can be fixed by loosening the set screw on the top bracket slightly. The top pivot pin is a screw made of metal that is inserted into a plastic cap https://bi-folding-door-repair42417.ltfblog.com/29743541/10-things-we-hate-about-bi-fold-door-repairs