these or something like it. it used to be a question of tinsel strength. nails used to have more but some of the newer specialty screws have the same if not more strength. plus always easier to unscrew then rip nails out. get yourself an impact driver / glue down an go to town.
http://www.dhcsupplies.com/store/p/...Subflooring-and-Sheathing-Screws-2-to-3-.html
-Brian
http://www.dhcsupplies.com/store/p/...Subflooring-and-Sheathing-Screws-2-to-3-.html
-Brian