MARINE-GRADE MATERIAL: 4" Boat Hatch Round Inspection screw-in deck plate is made of anti-aging, anti-corrosive, and UV-resistant ABS white plastic with a smooth finish.
LEAK-PROOF DECK PLATE: It is designed with a rubber O-ring that creates a watertight seal for safety and allows it to be used for interior and exterior applications.
EASY INSTALLATION: Screw-in style has a single-start, non-jamming, and no cross-threading. Separate cover plate and chassis for easy installation. 6 #8 Screws Needed (not included).
MEASUREMENTS: Inside Diameter: 4" (102mm), Outside Diameter: 5-5/8" (145mm), Cutout: 4-7/16" (112mm), Distance Between Mounting Holes: 5" (127mm).
SAFETY: Please, use silicone sealant on the hull or deck surface when installing the deck plate.
PRODUCT CODE: CAE-004473-01