Black Plastic Deck Plate 4 Inch Opening Waterproof Bayonet Type For Saltwater Boats, UV Stabilized Plastic, 5.8 Inch Outer Diameter, 5 Inch Screw Hole Span, Easy Install Access Hatch For Wet Environments

Single Pack UV-Stabilized Black Deck Plate for Boats
✔️ 4" opening, 5.8" OD, 5" screw hole span; six holes, P20004-01

This high quality waterproof inspection deck plate is molded from UV stabilized plastic, built for saltwater boats and wet environments. It serves as a rugged access hatch on decks, bulkheads, and bilges.

✅ Opening Diameter: 4 inches
✅ Overall Outer Diameter: 5.8 inches
✅ Screw hole span: 5 inches (opposite holes)
✅ Material: UV stabilized plastic; waterproof deck plate
✅ Screws: uses P20004-01; silicone sealant recommended on screw holes

💡 What is a deck plate with a 4 inch opening used for on saltwater boats?

It's a handy, weatherproof access port for inspection and maintenance in wet areas.

- access to bilges, compartments, hoses, and wiring on boats - keeps water out with bayonet design and gasket seal - fits a 4 inch opening with a 5 inch screw hole span and 5.8 inch outer diameter - UV stabilized plastic resists sun and saltwater for long life ✝️