Beckson 6 Deck Plate- Screw Down Though deck plates are no new invention, Beckson was the first to conquer all three safety features. First, a cover that would not open unexpectedly. Second, maximum water tightness. Third, prevent jamming closed or cross- threading that would prevent a cover from being closed. The Beckson Screw-Out 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 inc