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How to Repair Bifold Door Bottom Pivots If your bifold closet doors are sagging or scratching the floor, it's likely due to a misalignment. Simple adjustments can get them back on track. The bottom pivot is attached to the bracket's base or floor for an extremely secure, sturdy mounting. Threaded for adjustment, this kit is compatible with a broad variety of bi-fold doors. Anchor or pivot pins that are broken or cracked The pivot pins and anchor pins on bifold doors often fail or are misaligned,