C.E. Smith 80 Series Screwless Flush Mount Rod Holder - 0 Degree - Stainless Steel - Cast Bottom - Black Liner [53686C]80 Series Screwless Flush Mount Rod Holder 0 Degree Stainless Steel Cast Bottom Black Liner These flush mount rod holders are made of 316L stainless steel and have a wide, low profile cap that improves the look of any boat and provides outstanding mounting strength. Features: 316L stainless steel Fits 2 9 16 in. hole diameter Cast models feature a in. drain hole No logo on the cap for a sleek low profile The liner runs the full length of the tube