How to Repair a Bifold Door Top Pivot The top pivot can become loose and scrape along the floor. You can correct this by loosening the set screw of the top bracket a bit. The top pivot pin is made of an iron screw that fits into a plastic cap https://bifolddoorsealreplacement54420.total-blog.com/the-most-common-mistakes-people-make-with-bi-fold-door-repairs-55759631