Marine Stainless Steel Butt Hinge – AISI 316 is a compact, surface-mounted hinge designed for doors, hatches, lids, cabinets, and access panels on boats and other marine installations. Manufactured from AISI 316 stainless steel, it is suited to environments where hardware may be exposed to moisture, salt-laden air, and changing weather conditions. Its square 50.8mm x 50.8mm (2″ x 2″) dimensions make it suitable for applications that require a compact stainless steel hinge without occupying excessive mounting space.

This marine butt hinge consists of two rectangular leaves joined by a central hinge barrel, allowing the attached panel or door to pivot smoothly around a fixed axis. When fully opened, the hinge measures 50.8mm across both leaves and 50.8mm along the hinge barrel. Four countersunk mounting holes—two on each leaf—allow compatible flat-head fasteners to sit more neatly within the hinge surface. The symmetrical configuration also helps installers position the hinge evenly across the fixed structure and moving panel. Mounting screws are not specified and should be selected separately according to the installation surface, required holding strength, and operating environment.

AISI 316 stainless steel is widely selected for marine hardware because it provides stronger resistance to corrosion in chloride-rich surroundings than many general-purpose stainless steel grades. This makes the hinge a practical choice for marine doors, boat hatches, storage compartments, deck lockers, and similar exposed or semi-exposed fittings. Its polished metallic appearance also complements other stainless steel deck and cabin hardware. Regular freshwater rinsing and cleaning remain advisable, particularly after saltwater exposure, to help preserve the surface and remove accumulated salt or dirt.

The hinge is intended for surface mounting, making it useful for new installations as well as the replacement of a similarly sized boat hinge. Before ordering, buyers should confirm the overall 2″ x 2″ dimensions, mounting-hole positions, required opening movement, and available clearance. The supporting structure must also be suitable for the chosen fasteners. Although buyers may search for this type of component using terms such as SS butt hinge, stainless steel butt hinges, heavy duty stainless hinges, marine hinges, or boat hinge, the correct selection should always be based on dimensions, installation arrangement, and the load of the panel being supported.

This hinge provides a straightforward mechanical connection without complicated adjustment mechanisms. It can be used as a single hinge or as part of a multiple-hinge arrangement, depending on the size, weight, and construction of the door, hatch, or lid. The number of hinges and fastener type should be determined by the installer for the specific application. For replacement work, checking the existing hinge footprint before drilling can help reduce unnecessary modifications to the mounting surface.

Key Features:

• Marine Stainless Steel Butt Hinge – AISI 316 combines a compact square profile with corrosion-resistant stainless steel construction for marine and outdoor hardware applications.
• Manufactured from AISI 316 stainless steel for use in moisture-prone and salt-laden environments.
• Overall size: 50.8mm x 50.8mm (2″ x 2″) when open.
• Surface-mounting configuration supports straightforward installation on suitable flat surfaces.
• Traditional two-leaf butt-hinge design provides controlled pivoting movement for doors, hatches, lids, and access panels.
• Four countersunk mounting holes are arranged with two holes on each hinge leaf.
• Countersunk holes are designed to accommodate compatible flat-head fasteners for a neater mounting surface.
• Compact dimensions make the hinge suitable where mounting space is limited.
• Polished stainless steel appearance coordinates with common marine deck, cabin, and cabinet hardware.
• Suitable for new installations or replacement of an existing hinge with matching dimensions and hole placement.
• Can be installed in a multi-hinge arrangement when required by the panel size and application.
• Simple mechanical construction makes inspection, cleaning, and routine maintenance convenient.

Applications / Suitable For:

• Marine Stainless Steel Butt Hinge – AISI 316 is suitable for attaching compatible doors, lids, hatches and access panels on boats and marine structures.
• Boat storage lockers and equipment compartments.
• Cabin cupboards, cabinets and small marine furniture doors.
• Inspection covers and service-access panels.
• Deck lockers and hatch covers with suitable mounting surfaces.
• Console doors and enclosed storage areas.
• Marine interior and exterior hardware installations where AISI 316 stainless steel is preferred.
• Outdoor cabinets, enclosures and utility boxes exposed to moisture or weather.
• Replacement of an existing 50.8mm x 50.8mm surface-mounted butt hinge, subject to confirmation of its hole layout and installation requirements.
• Boatbuilding, refit, repair and general marine maintenance projects.

FAQs:

Q: What are the dimensions of the Marine Stainless Steel Butt Hinge – AISI 316?
A: The hinge measures 50.8mm x 50.8mm, equivalent to 2″ x 2″, in its open position.

Q: Is this hinge suitable for use on boats?
A: Yes. Its AISI 316 stainless steel construction makes it suitable for compatible boat doors, hatches, lockers, cabinets, and access panels exposed to marine conditions.

Q: How is the Marine Stainless Steel Butt Hinge – AISI 316 installed?
A: It is designed for surface mounting and has four countersunk mounting holes. Select fasteners that suit the mounting material, hinge holes, and operating environment.

Q: Can this hinge replace an existing 2″ x 2″ boat hinge?
A: It may be used as a replacement when the overall dimensions, mounting-hole positions, opening clearance, and application requirements match the existing installation.