They are Loctite from factory so my philosophy is don't fix what isn't broke !!
As I recall someone (I think Dave) stated there was only one or two out of the 4 that had Loctite but I agree. Don't start goofing around until there is a problem. If anyone needs to, a spare set of factory screws would-be good to have around.
Dave (Choderboy) has the most experience with this one.