Beckson Screw-Out Deck Plate White w/Diamond Texture 8in. A self-aligning center and an innovative gasket assure a watertight seal. A unique back-up sealing wall leaves the plate water resistant even if the gasket is removed. A screw-out plate should be used in compartments where a change in air pressure due to temperature or oil canning can occur. Deck plates are used for access inspection and clean out for compartments and tanks or just as general access for shut-off valves or back fastenings. Clear center plates permit visual inspection and observation of controls or gauges without removal of the plate. Features of Beckson Screw-Out Deck Plate Designed to provide access underneath the deck without the use of tools Use for access inspection and clean out for compartments and tanks or as general access for shut-off valves or back fastenings Single start non-jamming extra strong self-cleaning buttress thread Watertight seal Size: 6"; Color: White; Texture: Smooth Package Contents: Beckson Screw-Out Deck Plate Beckson DP84-W: Screw-Out Deck Plate White w/Diamond Texture 8in