Smooth Quarter Turn Deck Plate - White - 5" The Sea-DogA(R) 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. .embed-container { position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; max-width: 100%; } .embed-container iframe, .embed-container object, .embed-container embed { position: absolute; top: 0; left: 0; width: 100%; height: 100%; }