Threadlocker Yes or No??????

Permatex makes loctite. I use the blue stuff. It's medium and holds well. As long as you don't use the permanent stuff, you should be fine. I only use it on my air filter housing screw and motor mounts.

I am going to start using it again on drive wheel nuts and bolts.

I am a firm believer in Loctite products. There are several that cover most applications appropriately.

blue gel loctite is good won't run all over the place my favorite. then the red evil devil loctite stud and bearing loc takes heat to get it loose again is the next best/ permanent my 2-cents.
in a pinch any sciclone rtv will work as a thread locker I use it on the oil pan nuts on my real airplane and have never had to stop on a cloud to check the oil yet. been doing it for 23 years no nuts have fallen off.
But I can say I've scared mine pretty bad a couple of times.
Norman