Beckson Marine DP40-B-C 4" Screw-Out Deck Plate with Clear Center Black

The Beckson Marine DP40-B-C Screw-Out Deck Plate provides tool-free access to compartments, tanks, and controls with a 4" diameter opening and 4.5" cutout size. Designed for marine applications, this deck plate features a clear center that allows visual inspection of gauges, controls, and fluid levels without removing the plate.

Key Features:

• Single-start, non-jamming buttress thread prevents cross-threading and ensures smooth operation
• Self-aligning center design for easy installation and removal
• Innovative gasket system creates a watertight seal
• Backup sealing wall maintains water resistance even if gasket is removed
• Clear center insert for visual monitoring without plate removal
• Self-cleaning thread design resists debris buildup
• Black housing with transparent center
• Ideal for pressure-equalizing applications where temperature changes or oil canning occur

Perfect for accessing shut-off valves, back-fastenings, tank inspections, and compartment cleanouts. The screw-out design is recommended for enclosed spaces where air pressure differential may develop due to temperature fluctuations or hull flexing.