I was trying to replace the passenger side torque mount on my 98 civic and both nuts that are welded inside the frame snapped off. Now the bolts and nuts just spin.

I’ve read similar posts from people who had to cut an opening in the frame to access the nuts, but I really don’t want to do that. I don’t weld (to have the cut piece put back)

I was looking for other options that match my abilities.

Was wondering what would be safest to do that wouldn’t jeopardize integrity of the frame much:

  1. Drill a couple holes just above the nuts on the side of the frame (wheel well side) or
  2. Drill holes on the top of the frame under the air box to allow me to use a socket to remove/install.Or
  3. Would using rivot nuts be better?

Problem is I’d still need to somehow remove the nuts inside the frame if I go the rivot nut option

Included pics of the mount and top of the frame where the air-box normally sits for reference.

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1 Answer 1


Drilling holes big enough to allow a socket through would weaken it a lot. And as you don't want to weld new nuts on then you would not be welding up the holes either....

I suggest you do it properly or get it done properly and rivnuts are not strong enough.

  • How much would it weaken? Would the frame cave into itself over time or?
    – user58423
    Jun 6, 2021 at 19:34
  • Can you use a flag nut?. The extra metal flag is designed for use inside a beam or rectangular tube. In fact are you sure that isn’t a flag nut already in use in that car?
    – zipzit
    Jun 8, 2021 at 16:47
  • @zipzit most of the ones I saw had points at the corners and were spot welded into place. When we did chassis repairs we would open the chassis and weld new ones as needed...
    – Solar Mike
    Jun 8, 2021 at 17:03
  • @zipzit Yes I’m sure. I’ve watched a video of it being repaired (by welding) and it was just a nut tack welded to the frame at 3 points. Apparently for this generation car it’s something that breaks often
    – user58423
    Jun 8, 2021 at 23:09

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