Cobra78,

There are many types of loctite, but fortunately you can get away with using just loctite 242 (blue) which is the removable. Loctite 262 (red) is designed for permanent mounting of things like threaded studs. Since we are sometimes using very small threaded fasteners in our hobby, there is Loctite 222MS which is a removable pink formula that is designed for very small threaded fasteners. These three formulas are designed for threaded metal fasteners. If you want to glue in a non threaded stud or something like that then they also have a variety of other formulas. I am not sure if there is a formula for non metallic fasteners - their website may have that info (see post from davidinmi). As an engineer, I have specified a number of their products, as an R/Cer, I use 242 (blue) for everything and it has served me well.

Steve