ORIGINAL: rotarydoc

Interesting topic...I guess I'll throw my 2 cents in the bucket too...

I agree with Nick, I've never seen any metal screws driven into plastic back out...and Fadious has an excellent example...the tail blade to grip screws on a Blade 400....mine have never backed out, or even loosened for that matter...and that's with at least 150+ flights.

However, it might be a bit different on a nitro heli, where there is much more vibration, and you have the issue of the oil residue getting in the screwholes and possibly helping work the metal screws loose in the plastic...but for electrics, I see no need for CA on metal to plastic fasteners.

Just a comment on CA, if one ever does need to use it as a loctite type application, is that it will release it's bond quite nicely when heated....the melting/release temperature of cured CA is approximately 185 degrees F....so an application of heat with a heat gun, or even a lighter or match should do a nice job of releasing a CA bond...works wonders on the CPP2 tailbooms, we have many testimonials on the forum here to that!!

Glenn