What is R48?

[SteveH39]

i have this in my trex kit and i'm wondering where i should be using it, sorry for being a bit thick but its my first heli build in 10 years :

[Twister3D]

2 pots one green one blue
one is thread lock
and one is for seating bearings

manual tells all, cant remember off hand which is which

useful post HuH!

Any metal to metal bolts/screws need threadlock ok