Below Surface Tackle Gemlux Rod Holder 15&ordm; Screwless Bluewater Rod Holders have become the industry for standard offshore fishing boats. They are engineered with fisherman in mind. This patented rod holder features a screwless installation making it very appealing on the gunnel of your boat. Cast 316 Stainless Steel construction. Round, screwless head. Integrated black liner eliminates mold, mildew, and accidental removal of liner. Installation is simple with available installation sockets: 105555(STD) Simple and elegant look. "NO SCREWS NO RUST"