Actually jombo, I think it's something similar to red loctite. The 290 is used when you join the two cylindrical shafts.

https://www.pegasusautoracing.com/pr...asp?RecId=1027 Even on the package it says its meant for fitting things to a shaft, such as a bearing to a shaft, not for screws. Generally meant more for cases where you would be press fittting two items.

The green that is usually meant for screws or fastening is the 609 and that is usually considered a weaker compound than the blue (medium duty). In the past I used to use red locktite for areas where I did not want to remove the screw or nut at all. Such as a pilot nut on a crankshaft.

Even the helicopter link that you have previously mentioned also states that the green 290 is used for installing bearings on the rotor head of a helicopter. A press fit compound and a fastening compound are different.

I am not trying to dismiss the fact that the Nemesis/Genesis screws are held on with threadlock from the factory. But I think it is not the green compound 290 that you are thinking of. Either way, it is best to add heat to sures to break the bond of the threadlock on the diff cases and this will also for much easier removal of the screws.