How to Repair a Bifold Door Top Pivot The top pivot may become loose and scrape the floor. You can correct this by loosening the set screw for the top bracket slightly. The pivot pin on the top is a screw made from metal that is fitted into a plastic https://bifolddoorrepair47976.blogs-service.com/61670249/bi-fold-door-repairs-isn-t-as-difficult-as-you-think