do screws make a difference in mounting wall plate

I am mounting 6 of the Furetech rhodium wall outlets- I thought I read somewhere where using a magnetic zinc screws
is the best way to secure the outlets-is this true??thks
Toward the end of this thread: your topic question is discussed.
I know that Audiolabyrinth (Audiogon user name) has done a lot of experimentation on the topic but I can't find the article.
You could always PM him.
I'm not worried about the screws in your wall plate. I'm more worried about the screws in your head.