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How to Repair Bifold Door Bottom Pivots If your bifold closet doors are sagging or scraping the floor, it's most likely due to a misalignment. A few minor adjustments will put them back on track and running smoothly. This bottom pivot is mounted to the bracket's base or floor for an incredibly secure and sturdy mounting. Threaded for adjustment, this kit works with a wide variety of bi-fold doors. Anchor or pivot pins that are cracked or broken Anchor pins and pivots could be damaged or misaligned on bifol