In regards to strength, I stick to this rule of thumb:
For something you tighten with a ratchet wrench that is 1/4″ or smaller, you can use Loctite 222.
If the wrench is 1/4″ or 3/4″, Loctite 242 is suitable.
To add to the confusion; If your ratchet wrench is 1/4″, either 222 or 242 will work.
Enjoy getting things intentionally stuck! 🙂