Installing anti-sway ball on tongue

I have a Curt anti-sway and am ready to install the tongue ball. I would rather not drill holes in the tongue. Has anyone installed the ball using bolt-on brackets and if so where can I get the brackets?

Interesting question, I know with mine the tongue mount for the anti sway is not wider than the frame rail, so you'd have to modify the mount to "clamp" on the frame rail, the brackets may be available, but the clamp piece would have to be fabricated.  Marine hardware for trailers is a good source for brackets, but to me the clamp is an issue, you could use bar stock and build the clamping pieces.

I would not advise any sort of bolt-on brackets because the sway bar endpoints are under a lot of stress. They need to stay fixed for the sway bar to work effectively, and any sort of bolt-on bracket would likely move.

X1

Yes, I was talking about the tongue ball not the hitch end. I bought a tv ball hitch that has the anti-sway ball mounting plate incorporated into it. I just don't like to drill that many holes in the tongue frame but I guess it won't weaken it or Curt wouldn't have designed it that way. Thanks for the comments.