Just a dab of blue on the threads of the bolt going into the blind nuts. Do NOT use red unless you are putting the bolts in permanently. Red is basicly a bearing mount type. Do not use lLoctite on plastic or fiberglass parts. It will attack them. I use a little 5 minuit epoxy that I put over the blind nut to hold them in place. Just keep it out of the threaded portion. good luck with your model.

Mark Shuman