How to Repair a Bifold Door Top Pivot The top pivot of a bifold closet door can become loose and scratch the floor. This can be corrected by loosening up the set screw on the top bracket. The top pivot pin is made of an iron screw that fits into https://bifold-door-replacement45991.humor-blog.com/29760468/the-10-most-scariest-things-about-bi-fold-door-repairs