Thread Locker

If you fly RC models, you should use loctite or thread locker.

Why you ask ?

As it will keep you model from lossing screws midfligt, on a helicopter there are many more small vibrations then on a plane, so on a helicopter it is a NO GO, not to use it.

When I put a new helicopter together, i will first assemble it without the use of any thread locker, and then when I happy with it, I will unscrew every screw put thread locker on it, and put it back in.

Takes a little longer, but time well spend if you avoid juse one crash.

the product use here is: http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=10959

cheap (about 1 $), used it a lot, and no issus so far.