Beckson, Screw-Out Deck Plates with O-Ring Gaskets

Beckson, Screw-Out Deck Plates with O-Ring Gaskets provide a waterproof seal on your boat yet allow access without tools. Beckson screw-out plates are great for general access, inspection, clean outs, shut-off valves and more.

• Cover will not "pop" open unexpectedly from changes in air pressure
• O-ring and unique back-up sealing wall provides maximum water tightness
• Single start, non-jamming thread with extra strong, self-cleaning buttress thread

Center plate finishes include smooth, dimple, diamond and clear (only available with black or white deck ring).

• 4" Size - Outside Diameter: 6-1/8" (15.6 cm) Inside Diameter: 4" (10.2 cm) Cutout: 4-1/2" (11.4 cm)
• 6" Size - Outside Diameter: 8-1/8" (20.6 cm) Inside Diameter: 6" (15.3 cm) Cutout: 6-1/2" (16.5 cm)
• Size 8" Outside Diameter: 10" (25.4 cm) Inside Diameter: 7-5/8" (19.4 cm) Cutout: 8-1/2" (21.6 cm)

A note about fuel tank mounting.
Beckson Marine does NOT recommend your using deck plates for access directly into a fuel tank.
Through the deck above the tank? OK. But into the tank itself? No.
The diesel fuel will "eat up" the molded o-ring over time and allow fuel to leak - a totally unacceptable situation. You are better off using an aluminum or stainless steel plate and a diesel-compatible gasket material, attaching this plate onto the tank with through-bolt fasteners.