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How to Repair Bifold Door Bottom Pivots If your bifold closet doors are sliding or scratching the floor, it's most likely due to misalignment. A few minor adjustments can bring them back in line. This bottom pivot mounts to the floor or base of a bracket for secure, sturdy mounting. Threaded for adjustment, this kit works with a wide selection of bi-fold doors. Cracked or Broken Anchor or Pivot Pins Anchor pins and pivots may fail or be misaligned on a bifolding door and cause the doors to sag