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How to Repair Bifold Door Bottom Pivots Misalignment is likely to be the reason for your bifold doors becoming sagging and scraping on the floor. A few minor adjustments can bring them back to their proper alignment. This bottom pivot is mounted to the bracket base or floor for an extremely secure, sturdy mounting. Threaded for adjustment, this kit can be used with a wide variety of bi-fold doors. Anchor or pivot pins that are broken or cracked Anchor pins and pivots can be damaged or misaligned on