Bimini Top Deck Hinge (specifically a surface-mount 90-degree deck hinge with a threaded screw pin).
Unlike the jaw slides discussed previously that clamp directly onto moving frame rails, a deck hinge serves as the permanent anchor base. It is securely screwed down onto the flat fiberglass or wood surface of a boat's gunwale, deck, or windshield frame to create a pivot point for the main bimini canopy structure.
Key Features
Surface/Deck Mounting: The wide flange base features two countersunk mounting holes positioned on either side to allow flat-head structural wood or machine screws to sit perfectly flush.
Threaded Hinge Pin / Screw: The center portion features a heavy-duty transverse machine screw or quick-release pull pin. An eye-end fitting from the main canopy pole slides into this center gap, and the screw is tightened down to lock the frame bow into place while allowing it to pivot open or closed.
Investment Cast 316 Stainless Steel: It features a mirror-polished finish built to resist heavy exposure to marine elements and harsh saltwater.

Installation Tips
1,Always Use Bedding Compound: Marine fiberglass configurations flex under wind shear. Be sure to apply marine sealant (such as 3M Marine Adhesive Sealant 4200) under the base flange during installation to seal the mounting holes and protect against core wood rot or fiberglass cracking.
2,Backing Plates: If mounting into a thin fiberglass surface subject to heavy winds or fast cruising speeds, install a backup plate or wide washers underneath the deck surface to spread out the physical load.

Are you replacing a broken deck hinge on a flat surface, or does your boat's gunwale require an angled deck hinge style to offset a sloped contour?
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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