Sea-Dog 205280-1
Removable clevis pin and split ring; stop supports an upright open hatch.
Identify Sea-Dog Hatch, Long-Reach & Offset Hinges
Older marine hatch hardware can look similar while using very different pivots and mounting layouts. This reference separates Sea-Dog's 316 stainless hatch, long-reach, offset and strap hinge designs so you can identify the original component before choosing a replacement.
Identify the original hinge
Dimensions are in inches, using Sea-Dog's drawing-letter references where specified. Match the manufacturer's full part number rather than relying on appearance alone.
| Sea-Dog part number | Hinge type | Manufacturer dimensions | Installation fasteners |
|---|---|---|---|
| 205280-1 | Removable-pin hatch hinge | A 2-5/8; B 1-1/4; C 2-7/8 in | Eight #10 flat-head |
| 205285-1 | Long-reach hatch hinge | A 3-1/2; B 1-1/4; C 2-7/8 in | Eight #10 flat-head |
| 205350-1 | Offset door hinge | A 2-1/8; D 1-1/2; offset 5/16 in | Five #10 flat-head |
| 205390-1 | Strap hinge | A 4-1/8; D 1 in | Four #10 flat-head |
Installation note: fastening screws are not included. Dimension letters refer to the manufacturer drawing; verify hole centres and mounting surfaces separately.
How to recognize the correct version
- Opening shape: check for a removable clevis pin, a long reach, offset leaves or two narrow strap leaves.
- Position: measure the distance from the pivot to the mounting holes, and look for interference with the hatch rim.
- Fasteners: the table lists screw requirements per hinge. Sea-Dog states these screws are not included.
- Construction: all four models in this chart are investment-cast 316 stainless steel. The 201-series door hinges use a different construction.
Products by exact number
The pages link to the exact catalog records, not a promise that every item is pre-owned. Check the individual product's stated condition and availability; viewing and pickup in Kelowna are by appointment.
Sea-Dog 205285-1
Longer reach with a removable clevis pin and split ring.
Sea-Dog 205350-1
Designed for front-surface mounting on a raised door; optional separate backing plate 202539.
Sea-Dog 205390-1
Two equal narrow leaves for surface installation on lids and similar panels.
Related guides
Door and concealed hinge guide · Related marine frame fittings
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