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Smooth Quarter Turn Deck Plate - White - 5"
The Sea-Dog Quarter-Turn Deck Plate is constructed of UV stabilized ABS. Features a new locking system that prevents over tightening, jamming, and cross threading. Easy to open and close. A specially engineered lubricated gasket is used in conjunction with a knife edge for a leak tested seal. Installs with six #8 FH fasteners (not included). Patent Pending. Avoid contact with acetone or strong solvents.
WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.
Sea-Dog 336150-1 Smooth Quarter-Turn Deck Plate provides a clean, practical access solution for marine applications requiring a secure, easy-to-operate deck plate. Constructed from UV-stabilized ABS in white, this 5-inch quarter-turn deck plate is designed for straightforward opening and closing while helping create a reliable seal against water intrusion.
The updated locking system helps prevent over-tightening, jamming, and cross-threading, making routine access simpler and reducing the risk of damage during installation or use. A specially engineered lubricated gasket works with a knife-edge sealing design to provide a leak-tested seal. The deck plate installs using six #8 flat-head fasteners, which are not included. Avoid contact with acetone or strong solvents to help protect the ABS construction and finish.
Designed for boat owners, marine repair professionals, and DIY enthusiasts, the Sea-Dog Smooth Quarter-Turn Deck Plate is suited for providing access to enclosed spaces in decks, cockpits, and other marine compartments. Its smooth white exterior offers a clean appearance that complements many boat interiors and deck layouts.
Key Features
UV-Stabilized ABS Construction: Provides a durable white housing designed for marine environments.
Quarter-Turn Locking System: Opens and closes easily while helping prevent over-tightening, jamming, and cross-threading.
Lubricated Gasket and Knife-Edge Seal: Creates a leak-tested seal for dependable compartment access.
Simple Installation: Uses six #8 flat-head fasteners; fasteners are not included.
Marine Access Design: Suitable for deck, cockpit, and enclosed-compartment access applications.
Product Details
Brand: Sea-Dog
Part Number: 336150-1
Product Type: Smooth quarter-turn deck plate
Color: White
Nominal Size: 5 inches
Material: UV-stabilized ABS
Installation Hardware: Six #8 flat-head fasteners required; not included
Care: Avoid contact with acetone or strong solvents
California Proposition 65 Warning
WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.
Choose the Sea-Dog 336150-1 Smooth Quarter-Turn Deck Plate for clean, convenient access and a thoughtfully engineered sealing system on your boat.
SEO Meta Description: Shop the Sea-Dog 336150-1 5-inch white quarter-turn deck plate with UV-stabilized ABS, easy locking, and a leak-tested gasket seal.
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WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to 
