Not sure what the material is on your boat, but I just added these to mine:

http://www.sportco.com/productcart/p...-144p53153.htm

It does require a two part glue though. While I was at it, I also added some more D rings.
And I already had the Scotty Rod holders :

http://www.scotty.com/fishing-gear-e...rs/fly-rod.htm

This glue on has stainless nuts on the back side so they are underneath the glue on pad. Easy mounting.