4" Screw-out Deck Plate, White, (Dimple Plate)

These are Beckson's Screw-Out Deck Plates where the removable plate has a dimpled finish - covered with small bumps creating a non-skid surface.
Smooth, diamond-pattern non-skid, and clear removable plate versions are also available - see Related Products, below.

Beckson Screw-Out Plates are designed to provide access without the use of tools.
They incorporate an extra-strong, single-start buttress thread which is non-jamming (no cross-threading) and self-cleaning.
An innovative gasket assures a watertight seal. And a unique back-up structural sealing wall leaves the plate water resistant, even if the gasket is removed.

Deck plates are used for storage access, inspection, and clean out for tanks and compartments, or just as a general access for shut-off valves or back- fastenings.
The clear center plate version permits observation of controls or gauges and visual inspection without the necessity of removing the plate.
A screw-out style plate should especially be used in compartments where a change in air pressure due to temperature or oil-canning may occur.

Features —
• Certified Water-Tight
• Gasket seal
• Backup structural sealing wall reduces water intrusion to a trickle - even if the gasket is removed
• Will not open unexpectedly
• No cross-threading for easy closing
• Non-jamming for easy opening
• Non-skid dimpled surface on plate
• Lightweight, high quality ABS marine plastic
• Non-corroding
• Durable
• Not for use in fuel tanks

Dimensions of interest...
• 4" Screw-Out Deck Plates - have a functional (inside) opening of 4", requiring a 4-1/2" cut-out hole and have an overall diameter of 6-1/8".
• 6" Screw-Out Deck Plates - have a functional (inside) opening of 6", requiring a 6-1/2" cut-out hole and have an overall diameter of 8-1/8".
• 8" Screw-Out Deck Plates - have a functional (inside) opening of 7-5/8", requiring a 8-1/2" cut-out hole and have an overall diameter of 10-1/8".
• 4" and 6" screw-out deck plates have two finger holes, 8" screw-out deck plates have 4 finger holes

Click here to read a brief set of Deck Plate Installation Instructions, as well as hints for installing deck plates on various types of deck materials.


Further details regarding water-tight functionality...
Beckson Offers Certified Water-Tight Deck Plates

Because water intrusion on board can lead to catastrophic results, Beckson Marine ensures their Pry-Out and Screw-Out Deck Plates can be relied on for a superior seal.
These deck plates exceed five industry certifications in independent lab testing — ABYC H-3 and ABYC H-4 compliance for watertight deck structures and cockpits, plus ISO 12216, ISO 11812 and NEMA 250 6P submergence standards.

Safe and dependable Beckson deck plates are available in 4", 6" and 8" sizes.
Pry-Out Deck Plates use an extra-heavy-duty O-ring to ensure a watertight fit.
Screw-Out Deck Plates utilize a self-cleaning buttress thread and self-aligning center to resist jamming or cross-threading, plus a unique gasket and backup structural sealing wall to keep water out.