Beckson DP40 Screw-Out Deck Plate 4"

Beckson Screw-Out Deck Plates
4" Deck Plate with Standard Trim Ring
Inside Dia: 4" (10.2 cm)          Hole Cut: 4-1/2" (11.4 cm)
Thin rim with or without screw holes may be available in some color/material combinations. 

The Beckson Screw-Out Deck Plate was designed to provide access without the use of tools, with a single start, non-jamming (no cross-thread), extra-strong, self-cleaning buttress thread. They incorporate a self-aligning center and an innovative gasket to assure a watertight seal. A unique back-up sealing wall leaves the plate water resistant, even if the gasket is removed.