Blue stuff is middle isnt it? I think red is the stiffest? Not sure on white that i have seen on some rotor bolts. And then green is weaker?
I dont actually use loctite on mine. Although most come with it already on. Never had any trouble.
I have had troublesome bolts though. Now i try my best to be careful when doing them up and undoing them. Use a tool with good edges and such. I find if they are even just a little rounded, just throw them. Not worth the hassle. And they are cheap.
Hmm your probably right but i thought it would have been an m4 tap.