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How to Repair Bifold Door Bottom Pivots Misalignment is likely to be the cause of your bifold doors sliding and scraping on the floor. A few simple adjustments will bring them back to their proper alignment. This pivot's bottom is attached to the bracket's base or floor to provide an extremely secure, sturdy mounting. It is threaded to allow for adjustment. kit is compatible with a broad range of bi-fold doors. Cracked or Broken Anchor or Pivot Pins The pivot pins and anchor pins on a bifold door