DrFrier,
I'm the opposite of Minnflyer in the fact that I do predrill the hole. It's really almost a personal preference and you can do it either way that you like. Once I predrill the hole I will run the screw down the hole, back it out, and use a little thin CA ot harden the threads in the hole.

What Minnflyer said is about how far to tighten the screw down is pretty much right on the money. I usually watch the rubber and if you can see it distorting or "puckering" then you have tightened it too much. Take a look at the attached pictures and hopefully you an get a good idea of what is too much. In the first three picture there two mounting screws for the servo, the screw on the right is properly tightened down and the screw on the left is over-tightened. Now I will point out that the screw on left is a bit over done for "dramatic" effect and this is because I had to "over do it' to make the point.

I've included other pictures just to show how I do pre-drill and use CA on a mounting hole. Also included is a shot of the hardware I use to mount my servos with. I've found that these socket head screws are the neatest thing since sliced bread for mounting servos with. You can get that at [link=http://www.microfasteners.com]Micro Fasteneres[/link] or [link=http://www.rtlfasteners.com]RTL Fasteneres[/link] . IMHO they are well worth the little bit of extra time you take to order them. One of the best thing I like about them is that you don't strip them out like regular screws do. Give 'em a try and I think you'll really like them. I usually buy the assortment boxes that have a good range of hardware that I use for my planes.


I hope this helps

Ken