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Beckson Marine DP40-W 4-Inch Screw-Out Deck Plate with Smooth Center

Manufacturer

Beckson Marine

<h3>Beckson Marine: Seven Decades of Marine Innovation</h3><p><strong>Beckson Marine</strong> has been a cornerstone of the marine hardware industry since 1955, when the Bridgeport, Connecticut company set out to solve one of boating's most persistent problems. <a href="/7253-beckson-marine">Beckson</a> pioneered the world's first dependable, self-priming, all-plastic bilge pump — a product that would become the foundation of an entire philosophy: build it right, test it relentlessly, and make it last in the harshest environment on earth.</p><p>The insight behind that original pump was surprisingly forward-thinking. At a time when metal was the default material for marine hardware, Beckson recognized that plastics offered something metal could not: freedom from electrolysis, corrosion, and the constant maintenance burden that plagued metal thru-hull fittings. By the 1970s, the marine industry had largely caught up to what Beckson already knew, and plastic had become the standard. Beckson helped get it there — pioneering the use of rigid PVC, Lexan&reg;, polypropylene, and other advanced materials now common throughout the industry, earning more than two dozen patents along the way.</p><h3>A Product Line Built Around Life on the Water</h3><p>From that single iconic pump, Beckson grew its catalog to well over 900 items. The success of the Thirsty-Mate&reg; hand pump line created a natural need for deck-level access, which led Beckson to invent the first pop-out <a href="/7253-beckson-marine">deck plate</a> — eliminating the spanner wrenches required by traditional threaded metal models. Further refinements introduced the first self-cleaning buttress thread in screw-out deck plate designs, a feature boaters still rely on today to keep sand and grit from jamming the threads.</p><p>Beckson's <a href="/7253-beckson-marine">hatches and opening ports</a> represent what the company calls its greatest contribution to the marine industry. Years of research produced a patented line of portlights and hatches engineered to eliminate leaks, condensation, and corrosion. Available in flush, raised full-size, ventilation, and versatile stow-away configurations, Beckson hatches open a full 180 degrees and feature a rugged Slip-Clip snubbing latch for reliable, weather-tight performance. The company's Vent-O-Mate&reg; exhaust ventilator and air scoops round out the ventilation lineup, actively combating the dampness and mildew that can plague enclosed cabin spaces.</p><p>Beyond structural hardware, Beckson supplies an extensive range of <a href="/7253-beckson-marine">marine accessories</a> including boat hooks, drink and equipment holders, kayak accessories, drain plugs, and fittings. The brand's boat hooks are engineered so they won't collapse at the critical moment of docking — a real-world reliability standard that defines the Beckson approach across every product category.</p><h3>Trusted by Boat Builders and Boaters Worldwide</h3><p>Beckson's reputation extends well beyond the aftermarket. The company serves as an OEM supplier to high-quality boat builders around the world, a testament to the consistency and precision of its manufacturing. In 2016, Beckson's 4", 6", and 8" deck plates became the first certified by independent lab testing to meet or exceed ABYC H-3, NEMA 250 6P submergence, and ISO 12216 watertightness and strength standards — a milestone that underscores the company's commitment to independently verified performance.</p><p>As a privately held, family-oriented business headquartered in Bridgeport, Connecticut, Beckson has always operated with a &quot;boaters for boaters&quot; ethos. Continuous testing, refinement, and a genuine passion for life on the water have kept the brand at the forefront of marine hardware for over 70 years — and show no signs of slowing down.</p>

Part Number

DP40-W
06/21/2036 10:44 AM
Sale Price

$17.19

In Stock (10+)

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Usually delivered within 2 days

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No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Beckson Marine DP40-W is a 4-inch screw-out deck plate designed for tool-free access to storage compartments, fuel tanks, and inspection ports on boats and marine vessels. This white deck plate features a standard trim ring with a smooth, non-textured center for a clean, streamlined appearance.

Key Features:

  • Single-start, non-jamming buttress thread design prevents cross-threading and binding
  • Self-cleaning thread system automatically clears debris during opening and closing
  • Self-aligning center ensures proper seating every time
  • Innovative gasket design provides a reliable watertight seal
  • Smooth center surface is easy to clean and maintain
  • UV-resistant white plastic construction for marine durability
  • No tools required for installation or removal

Beckson deck plates are trusted by boaters worldwide for their durability and reliable watertight performance. The extra-strong construction withstands harsh marine environments while providing convenient access to below-deck areas. Perfect for replacing worn deck plates or installing new access points on any marine vessel.

Products specifications

Center

Smooth

Color

White

Diameter: Interior

4"

Hole

4-1/2"

O.D.

6-1/8"

Good selection of products and extremely fast FREE delivery!

Very satisfied.

Super fast shipping

Quick and Easy, Just like it should be.

Great product

Billing/shipping db is a little quirky.

So far so good

Easy buying

Best price fast shipping. will deffinitly order again

Don't see where my coupon code took off 10%. Also did not receive a second email with tracking info. First e-mail said we would receive a tracking number in next email.

Best Price I could find, fast shipping. I shall return!

Nice and simple!

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Quick and easy ordering. Thanks.

Easy to use great product and fair pricing

Pretty good besides that had to call to confirm quantity of part.

i ordered both lockers and air compressor from autoplicity they have the best price online and great customer service! can't wait to order again

Ordered a hard to find in Lagos fuel sender for my 1998 Benz c280 and i had it delivered on time for delayed reapirs. Order #6886

efficient; loved payment through Amazon

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