Marine-Grade 316 Stainless Steel Flush Mount Boat Fishing Rod Holders with Rectangular/Square Top Flange.
Unlike common oval or teardrop flange designs, this specialized rectangular footprint is engineered specifically for narrow gunwales, flat coaming boards, or compact corner transoms where mounting width is strictly limited. They are stripped of external plastic caps or liners to provide a clean, heavy-duty metallic finish preferred on high-end tournament sportfishers and aluminum workboats.
Angle Designations & Fishing Applications
The three variations display the core geometric angles needed to optimize a vessel's active trolling and storage capabilities:
• Left (90-Degree / Vertical): The top rectangular flange sits completely perpendicular to the vertical tube body. It is used strictly for upright rod storage, kite fishing, or as a strong vertical socket for dropping in deck grills, cleaning tables, and dive tanks.
• Center (15-Degree Shallow Tilt): Features a subtle, slight angle. This provides a versatile mid-tier option frequently utilized along the transom wall or narrow side gunnels where space is tight.
• Right (30-Degree Deep Tilt): The gold standard for offshore trolling applications. It angles the fishing rod tips significantly outward past the beam of the boat, expanding your trolling spread and keeping active lines clear of the propeller wash.
Key Technical Sizing & Installation Specs
When replacing hardware or cutting fresh holes for this rectangular flange series, keep these core dimensions in mind:
• Hole Saw Requirements: Standard heavy-duty housings feature a 2-inch (50.8 mm) outer diameter tube, requiring a corresponding angled hole saw cut through the gunwale.
• 4-Hole Fastener Pattern: Unlike teardrop models that rely on a 3-screw arrangement, these rectangular heads utilize a 4-bolt layout to maximize structural anchoring when handling heavy trolling drag pressures. Always install using #12 countersunk 316 stainless screws or machine bolts to prevent galvanic corrosion.
• Deck Protection & Sealing: Because these do not utilize a built-in rubber gasket underneath the flange, applying a premium marine-grade sealant like 3M Marine Adhesive Sealant 5200 around the underside is critical to create a permanent watertight bond against the fiberglass or aluminum hull.
Are you searching for a specific brand match to ensure the 4-hole mounting pattern lines up perfectly with existing holes on your boat, or do you need help determining the ideal spacing layout to install these along your gunwale?
Haifan Rigging supply a range of marine boat hardwares. They come with a variety of fittings for each end to suit your particular application. Yachts, Sailboats, Ships and Other Fields.
If you wish to ask a question or need further advice, you are welcome to contact us. We'll be happy to help.
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