Identify Sea-Dog Bimini Deck Hinges: Stainless vs Nylon
A Bimini deck hinge attaches the folding frame to a boat's mounting surface. Sea-Dog offers stainless 90-degree hinges and nylon fittings, including a 10-degree angled version for sloping surfaces. Choose by hinge-base shape, pivot-pin diameter and mounting location rather than finish alone.
Choose the matching design
Stainless 90-degree hinges
270200-1 is a standard 316 stainless 90-degree deck hinge. The 270210-1 shares the same listed base size but uses a removable pivot pin. Both have 1/4-inch pins.
Black nylon deck hinges
273200-1 is a large nylon deck hinge with a straight base. 273230-1 is an angled 10-degree version for inclined mounting surfaces. Both use 3/16-inch pivot pins.
Compare manufacturer part numbers
| Sea-Dog MPN | Construction | Hinge style | Base size | Pivot |
|---|---|---|---|---|
| 270200-1 | 316 stainless | 90° base | 3/4 × 2¼ in | 1/4 in pin |
| 270210-1 | 316 stainless | 90° removable-pin | 3/4 × 2¼ in | 1/4 in pin |
| 273200-1 | Black nylon | Standard top mount | 13/16 × 2 7/16 in | 3/16 in pin |
| 273230-1 | Black nylon | 10° angled top mount | 7/8 × 2 7/16 in | 3/16 in pin |
Stainless and nylon deck hinges have different pin sizes in these models: 1/4 inch versus 3/16 inch. Confirm eye-end and base compatibility before replacement.
How to check the original part
- Identify whether the mounting surface is flat or angled; the 273230-1 is a 10-degree base.
- Measure the existing base footprint and screw-hole positions.
- Check the pin diameter and whether a removable-pin version is needed.
- Inspect the substrate and old fasteners for looseness, corrosion or water damage.
- Use the appropriate marine mounting and sealing method; individual listings may not include deck fasteners. UsedRVParts viewing and pickup are by appointment.
Identify the exact Sea-Dog part
Check the individual listing for its condition, photographs and included parts.
Related parts reference
Continue with Sea-Dog Bimini top caps and internal tube inserts when the associated component also needs attention.
Recently viewed
New & Updated RV Parts Inventory — Check Back Often
We’re always adding new and used RV parts to our inventory, so be sure to check back regularly.
If you don’t see the part you need today, we may still have it in stock—our internal database includes thousands of new RV parts that are not yet listed online.
Text or email us with the product number or model, and we’ll check availability for you right away.
Our Products