316 Stainless Steel Heavy Duty Marine Hinge Large for Boat Door and Hatch
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Wide cabin doors and heavy companionway hatches need a hinge that can handle the span — a small hinge on a large door is a weak point waiting to fail. At 122.5mm, this 316 SS hinge provides the bearing length and structural mass to keep wide, heavy panels aligned and moving smoothly, season after season.
Key Features
- 316 marine-grade stainless steel — unmatched corrosion resistance in saltwater and coastal environments
- Large 122.5mm size — ideal for wide doors, heavy hatches, and large access panels
- Mirror-polished finish — professional appearance with added protection against rust and oxidation
- Heavy-duty pin and mounting plate — tight fit and dependable strength under load
- Pre-drilled holes — straightforward installation on boats, yachts, and coastal structures
Specifications

- Material: 316 Stainless Steel
- Finish: Mirror Polished
- Size: 122.5mm
- Note: Due to manual measurements, please allow for slight size tolerance.
Applications
- Wide cabin doors and heavy companionway hatches
- Deck lockers, storage compartments, and large access panels
- Industrial marine equipment and coastal architectural installations