Plan on putting plasticote on them. I just postew it as I did it because I had discussed installing them with G$ and needed to show what i had tried to explain.
For those that don't know about these type of inserts here is a couple of links to help describe them.
http://www.aimfasteners.com/about_rivnut.html
http://www.evolutionimport.com/articles.asp?id=111
http://fjr1300.info/howto/rivnut-tool.html
They work really well if installed right.