Sea-Dog Screw-Out Deck Plate 6" – Black

Sea-Dog Screw-Out Deck Plate 6" – Black

A large-format, tool-required screw-out deck plate built to marine-grade standards. Moulded from high-quality UV-stabilised plastic with antioxidant additives, this 6" plate provides a wide access opening for larger compartments where the 4" or 5" versions don’t give you enough room. The black finish suits dark hulls, grey decks, and black-trimmed boats.

Key Features

• 6" screw-out deck plate in black — the largest standard opaque size in the Sea-Dog lineup
• Wide opening ideal for large storage compartments, live wells, and deep bilge access
• Moulded with UV stabilisers and antioxidants for long-term colour and structural integrity
• Requires a deck plate key for opening and closing
• Installs with six #8 flathead fasteners (not included)
• Use silicone sealant on the mounting surface during installation for a watertight seal
• Keep threads clean with warm soapy water; lubricate with Vaseline or Teflon grease to prevent seizing
• Avoid contact with acetone or strong solvents

Parts Desk Insights

Best use case: Choose the 6" black version when you need maximum access on a dark-hulled or black-trimmed boat — large storage lockers, live well lids, or deep bilge compartments where a 4" or 5" plate would restrict your reach. Like the smaller sizes, it requires a key to open, so it’s best suited to locations that don’t need frequent tool-free access. To open this plate, you’ll need a compatible deck plate key — see the Deck Plate Key or the Universal Deck Plate Key. For the 6" white version, see the Sea-Dog Screw-Out Deck Plate 6" – White. For smaller black sizes, see the 5" Black or 4" Black. If you prefer tool-free access, consider the Beckson 5" Twist-Out Deck Plate – Black.