Sea-Dog Marine Hinges: Butt, Offset, Short-Side & Take-Apart

Boat doors, cabinets and access panels need different hinge constructions. Sea-Dog offers compact mortised butt hinges in stamped 304 stainless steel, an offset model for raised doors, a right-hand take-apart brass hinge and a cast 316 stainless short-side hinge. This comparison helps match the hinge to the intended mounting surface and existing opening.

Four ways these marine hinges differ

Mortised butt hinges

Butt hinges normally seat into recesses in the door and frame. Compare leaf length, width, thickness and mounting-hole positions before selecting a size.

Offset hinge

201590-1 has a ⅜-inch offset on one side and mounts on the front of a raised door, not as an ordinary flat butt hinge.

Right-hand take-apart hinge

204279-1 uses chrome-plated forged brass. Its right-handed, two-piece design allows a suitable door or lid to lift off without unscrewing the hinge.

Short-side hinge

205310-1 is investment-cast 316 stainless steel, with one shorter leaf for installations where the available mounting area is tight.

Sea-Dog marine hinge sizes and constructions

Use the exact Sea-Dog display MPN rather than assuming the closest-looking hinge will replace the original. Fastener sizes come from the maker's installation tables; screws are not included.

MPN Hinge design Construction Nominal size Handing or offset Fastener reference
201070-1 Butt hinge Stamped 304 stainless steel 1¼ × 1½ in Not handed Four #8 flat-head screws
201080-1 Butt hinge Stamped 304 stainless steel 2 × 3 in Not handed Six #8 flat-head screws
201081-1 Butt hinge Stamped 304 stainless steel 3 × 3 in Not handed Six #8 flat-head screws
201580-1 Butt hinge Stamped 304 stainless steel 1⅜ × 1½ in Not handed Confirm original hole pattern
201582-1 Butt hinge Stamped 304 stainless steel 2 × 2 in Not handed Confirm original hole pattern
201590-1 Offset butt hinge Stamped 304 stainless steel 1½ × 1½ in ⅜-in offset Four #8 flat-head screws
204279-1 Right take-apart Chrome-plated forged brass 3⅞ × 2 in Right-hand lift-off Four #10 flat-head screws per hinge
205310-1 Short-side door hinge Investment-cast 316 stainless steel 2⅜ × 1½ in Not specified Five #10 flat-head screws

Cabinet, door and hatch mounting checks

Decide whether the opening requires mortised leaves, an offset for a raised door or a lift-off arrangement for occasional access. Measure mounting thickness and clearance around the knuckle. Use suitable backing and corrosion-resistant screws appropriate to the mounting surface.

Handing, geometry and mounting are independent choices

201590-1 uses stamped 304 stainless steel with a ⅜-inch offset. 204279-1 is a right-hand chrome-plated brass take-apart fitting. 205310-1 is a cast 316 stainless short-side hinge. These are not interchangeable simply because they are marine-grade hardware.

For the 204279-1, confirm the right-hand lift-off direction and alignment when closed. It is supplied as the manufacturer's take-apart hinge set; hardware for surface mounting is separate.

Sea-Dog cabinet, offset and take-apart hinges

Choose the correct hinge model below to review the product listing and availability.

Related stainless marine hardware

Sea-Dog stainless rail-base dimensions

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