Beckson 4" Screw-Out Deck Plate with Trim Ring, Smooth, Black
Free returns on all eligible orders
You have 30 days to request a return. All sale items are final sale.
Beckson 4" Screw-Out Deck Plate with Trim Ring — Smooth, Black
Beckson’s screw-out deck plates are built around a single-start buttress thread — a thread profile engineered specifically to resist cross-threading and jamming, so the lid goes on and comes off cleanly every time, even with wet hands or after a season of salt exposure. The 4" black plate includes a standard trim ring that covers the mounting flange for a finished appearance, and the smooth lid surface keeps the profile clean and snag-free.
A self-aligning center makes it easy to engage the thread without having to look, and the gasket compresses against an innovative sealing surface to create a watertight fit. A secondary back-up sealing wall provides an additional layer of water resistance even if the gasket is ever removed or damaged.
Features
- 4" screw-out closure with single-start, non-jamming buttress thread
- Self-aligning center for easy, tool-free engagement
- Innovative gasket design for a watertight seal
- Back-up sealing wall provides secondary water resistance
- Standard trim ring included — covers mounting flange for a clean finish
- Smooth lid surface
- Black finish
Best Use Cases
The Beckson screw-out is the right choice for deck plate locations where cross-threading is a recurring problem — the buttress thread design eliminates it. Well suited for fuel sender access, inspection ports, and wiring pass-throughs that are serviced regularly. The 4" size fits tighter deck spaces where a 6" or 8" plate won’t fit. Choose black to match dark-coloured decks or hardware.
Parts Desk Insights
The 4" measurement refers to the plate’s outer diameter — confirm your cutout size before ordering, as the required hole diameter will be smaller than the OD. For the white version of this plate, see the Beckson 4" Screw-Out, White. For larger sizes, see the 6" Black, 6" White, and 8" White. For a twist-out closure style, see the Beckson 5" Twist-Out, Black or White. Replacement o-rings are available separately: Beckson Replacement O-Ring.
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 3–4 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.