How to fix toilet seat bolts

Written by deborah waltenburg Google
  • Share
  • Tweet
  • Share
  • Email

Depending upon the weight and force used when sitting on a toilet seat, the mounting bolts can break off. To preserve the safety of your own delicate seat, you will need to replace a broken toilet seat bolt to prevent pinched cheeks and other unfortunate accidents. Follow these steps to fix broken toilet seat bolts.

Skill level:

Other People Are Reading

Things you need

  • Toilet seat bolts and nuts
  • Slip-joint pliers
  • WD-40

Show MoreHide


  1. 1

    Lift the hinge cover, using a knife or your fingernail.

  2. 2

    Use pliers to loosen the plastic nut on the bottom side of the bolt. If the broken bolt is rusted, spray some WD-40 around the nut to help loosen it. Once the nut is loosened, unscrew it to remove it completely from the bolt.

  3. 3

    Push bolt up through the hole and remove it from the toilet seat. Clean and dry the area beneath the mounting hinge thoroughly before replacing the bolt.

  4. 4

    Insert new bolt from top. On the bottom side, slip on the washer (if applicable) up to the base of the toilet and then screw on the nut.

  5. 5

    Snap bolt covers back into place.

Tips and warnings

  • If you have difficulty remembering which direction loosens and tightens a screw, think about this: righty-tighty, lefty-loosey.
  • If the bolts are so rusted that you cannot remove the nuts, you will have to use a hacksaw to saw through them.
  • Make sure you have the right length of bolt (typically 2 1/2-3 inches long). If the bolt is too short, the nut will not fit properly and the seat will again come loose.
  • Do not overtighten the nut as this will weaken the bolt and cause it to break.

Don't Miss

  • All types
  • Articles
  • Slideshows
  • Videos
  • Most relevant
  • Most popular
  • Most recent

No articles available

No slideshows available

No videos available

By using the site, you consent to the use of cookies. For more information, please see our Cookie policy.