A rubber O-ring on these plastic deck plates creates a watertight seal for safety. Screw-in style has a single-start, non-jamming (no cross-threading), extra-strong, self-cleaning buttress thread. Use only 100% silicone caulk. ShWt .4
Reviewed by 1 customer
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Comments about West Marine Screw-in Deck Plate, 6, Black:
The deck plate leaked, but we added just a touch of silicone gel on the o ring and did not leak anymore. With wet hands it is very difficult to open, so we added a half an inch wooden handle and that allows to open and close easily.
It is a good product. If the ring is water repellent lubricated, it works just fine.