Sea-Dog 205280-1
Removable clevis pin and split ring; stop supports an upright open hatch.
Sea-Dog 316 Stainless Hatch, Offset & Strap Hinges
Hatch lids, raised doors and dock boxes need different hinge shapes. These Sea-Dog parts are investment-cast 316 stainless steel, but their pivot placement, reach, mounting style and screw requirements differ. Compare the existing installation before ordering.
Part number and size comparison
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.
Check fit before ordering
- 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.
Shop these Sea-Dog hinges
These products ship from supplier warehouses rather than being available for in-person viewing or pickup.
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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