Loctite breaks down plastic. If you have to use something to help hold screws in plastic use CA glue or silicon sealer. Here is where I got my alloy knuckles and is the only thing I changed on the front end of my MT. All so you can see from the pictures I have run many gallons throw my MT.
http://www.neweramodels.com/prod68_h...tm?session_id=
This are billet and watch out what you buy from others as a lot of places sell cast like GPM which is not near as strong. That is why some places sell there parts cheaper as they are cast and not billet.

The brand you are talking about are good but they are not yet sold in North America I can find and if some one knows some there in North America please let me know.