Funny you mention this. A week or so ago I started a thread on how to epoxy ball bearings into allen head bolts. After doing some research I decided I'll be going with super glue instead of epoxy to facilitate the removal of the ball bearings using acetone.

I'm intrigued to hear that you've had great success filling allen head bolts with nothing but crazy glue. I may try this as well. How long does it generally take to remove the crazy glue from a given allen head bolt? Do you ever have issues with getting all of the glue removed? I want to do it right so that I don't strip the bolt heads. Thanks for your help!