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How to Repair Bifold Door Bottom Pivots If your bifold closet doors are sagging or scraping the floor it's probably due to a misalignment. A few minor adjustments can get them back on track. The bottom pivot is attached to the bracket's the floor or base for an incredibly secure and sturdy mounting. This kit is threaded for adjustment and can be used with a variety of bi-fold door designs. Anchor or pivot pins that have broken or cracked The anchor pins and pivot pins on a bifold door can break or are misaligned which can cause the doors slide down,