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How to Repair Bifold Door Bottom Pivots If your bifold closet doors are sagging or scraping the floor it's likely due to misalignment. A few simple adjustments will bring them back in line. The bottom pivot is attached to the floor or the base of a bracket for a secure, sturdy mounting. It is threaded to allow for adjustment. kit works with a wide selection of bi-fold doors. Broken or cracked Anchor or Pivot Pins The anchor pins and pivot pins on bifold doors often break or are misaligned