Gemlux 105513 Bluewater Heavy Duty Screwless Rod Holder – 15 Degree by Gemlux Fishing. Gemlux Heavy Duty Bluewater Rod Holders have become the standard for offshore fishing boat rod holders. They feature a cast 316 stainless steel construction, along with a screwless design that eliminates the need for screw holes in your gunnel. Installation requires the use of Gemlux’s installation socket. Designed for extra heavy-duty applications and available with swivels, the Heavy-Duty Bluewater Rod Holders are perfect for big game trolling, deep dropping, and daytime swordfishing. Sorry, our items are NOT available for pick-up. No additional information at this time. You might also like. NLBN No Live Bait Needed 3 Jig Heads. No Live Bait Needed 5 Lil Mullet. Ande Premium Monofilament Fishing Line. KUS – WEMA – Liquid Fuel Level Sender.