Sea Dog Stainless Steel Deck Plate ( 3" or 4" Sizes )
Sea Dog Stainless Steel Deck Plate ( 3" or 4" Sizes )Sea Dog Stainless Steel Deck Plate ( 3" or 4" Sizes )Sea Dog Stainless Steel Deck Plate ( 3" or 4" Sizes )
Sea Dog Stainless Steel Deck Plate ( 3" or 4" Sizes )
Item #SD-DPlate
Item Rating:
Regular Price:$88.99
Sale Price:$64.21
You Save: 28%
Size/ Model #
Quantity Pricing Available!
1 - 4$64.21 ea.5+$57.14 ea.
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Stainless Steel Deck Plate by Sea Dog > 3" or 4" Sizes > Model No. 335653 or 335654 > 316 S.S.

- A part of the Sea Dog line of heavy duty stainless steel marine grade hardware, so these stainless steel deck plates are built to last.

Product Features:

Heavy duty, all metal deck plates.

Made from Investment Cast 316 Stainless Steel, for maximum corrosion resistance and durability.

Designed to survive any environment, the “O” ring seal helps insure water stays out.

Deck plates are pre-drilled for easy installation.

Requires four #12 fasteners, sold separately.

Use with Sea Dog Deck Plate Keys # SD-335680 or SD-335699.

Deck Plate Key(s) ( Not Included - Sold Separately )

Specifications & Pricing:

Plate Size Opening DIA (A) Overall DIA (B) Hole Size (C) Fastener Ring (D) Price Per Plate
3" 3 1/4" 4 11/16" 3 5/16" 4" $64.21 or 5+ for $57.14
4" 4 3/16" 5 9/16" 4 1/4" 4 13/16" $83.51 or 5+ for $76.44
Please choose the Deck Plate(s) you need from the drop down menu above the product description.

Plate Option: 3" Size - Model # SD-335653 - Removable Cap Diameter (A): 3 1/4" - Flange Outside Diameter (B): 4 11/16" - Outside Diameter of Ring Below Flange (C): 3 5/16" - Distance Between Mounting Hole Centers (D): 4" - Material: 316 S.S. - Weight: 1 lb 1 oz - Price: $61.21 each or Qty. 5+ for $56.14 each

Plate Option: 4" Size - Model # SD-335654 - Removable Cap Diameter (A): 4 3/16" - Flange Outside Diameter (B): 5 9/16" - Outside Diameter of Ring Below Flange (C): 4 1/4" - Distance Between Mounting Hole Centers (D): 4 13/16" - Material: 316 S.S. - Weight: 1 lb 8 oz - Price: $80.51 each or Qty. 5+ for $75.44 each

Combine this purchase with other items in our store for discounted or even FREE Shipping.
Sold individually.

Available in several sizes.



Most marine hardware can be divided into two distinct groups these days.

Cheap junk made with little, if any, thought to the impact its production has on the environment or the workers involved - or high quality gear made from materials designed to last, by companies that care.

We prefer to carry the latter.

Plastic and nylon parts are durable for a while and they satisfy price sensitive shoppers. Their production, however, creates numerous toxins, and eventually enough sunshine or stress will cause them to break.

Chrome, nickel, and zinc plating can protect metal surfaces for years, but their initial production, especially in third-world countries can cause devastating harm.

Painted parts are effective for a while, but paint production is usually nasty, and as it chips and goes over the side, paint carries its own poisons along.

At greenboatstuff.com we choose to carry aluminum, brass, bronze, stainless steel, and occasionally wood hardware.

In an imperfect world we know these choices are not entirely without their faults.

In our opinion, however, they satisfy our criteria for high quality, long lasting products that do the job well while inflicting minimal, if any, harm.

Product ReviewsOverall item rating: Total ratings of this item: 0Hide ratingsclick to rate this product No ratings
If entrepreneurs are noted for taking the road less traveled, then the founder of Sea-Dog, Hans "Action" Broson Sneve, was a shining example.

As a representative for a number of marine hardware lines in the early 1930s, he came up with the idea of showcasing his wares on the type of vehicle they were intended for, a sea vessel.

His sales route became the waters of the Pacific Coast.

The M.V Sea-Dog, also known as the "Boat-Show-Boat", was one of two identical 55 foot cruisers built by Stephens Bros. of Stockton, California. One was built for H.A.B. Sneve Company and the other reported for Charlie Chaplin.

Well built of oak frames, Port Orford cedar planking and all teak superstructure, she was equipped with all types of gear from manufacturers represented by the company.

Hans Sneve commenced a coastwise trip from Alaska to Mexico visiting all ports large and small en route and having an open house for the public in all ports.

The new and well appointed yacht created quite an impression in the early thirties considering this was the depth of the depression. In some of the Alaskan ports, it wasn't uncommon for practically the entire population of a town to turn out to view the Sea-Dog.

In 1960, Mr. Sneve retired from the H.A.B. Sneve Company and his nephew, Eldon Nysether took over at the helm. The company name became Sneve-Nysether, Inc. with the Sea-Dog Line continuing as the main division of the company.

Eldon taught the business to his two sons, Mark and Brad, and while growing up, they worked right alongside their father. After college, both Mark and Brad returned to the family business.

Now operating out of Everett, Washington under the Sea-Dog Corporation, the company continues to expand with a continuing addition of top quality items.

With the ongoing support from a growing number of valued customers, and the third generation of management now active, the Sea-Dog Line is looking forward to a great future.

Product Reviews for Sea Dog Stainless Steel Deck Plate ( 3" or 4" Sizes )

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<strong>Sea Dog Stainless Steel Universal Deck Plate Key</strong> ( 4" Size )
Regular Price: $5.49
Sale Price: $4.40
Stainless Steel Deck Plate Key by Sea Dog > Model No. 335695 > 4" Size > 304 S.S.

This multiple function deck plate key is part of the Sea Dog line of heavy duty stainless steel marine hardware, these universal deck keys are truely built to last.

Product Features:

This deck plate key should last you forever.

Built from durable 304 Stainless Steel, this shackle key opens almost every deck plate you are likely to come across.

The integrated bottle and can opener also lets you take care of a cold one or dinner with ease.

The narrow end angles to a flat screwdriver point too.

A handy pre-cut hole lets you attach the key to a string or lanyard for easy storage on you or your boat.

Instead of the cheap plastic versions you will snap in a season, step up to the last deck plate key you will ever need to buy.

Specifications & Pricing:

Width (B) Point to Point (C) Length (A)
1 1/16" 1 1/8" 4"


Product Type: Sea Dog Stainless Steel Deck Plate Key - Model # SD-335695 - Length (A): 4" - Width (B): 1 1/16" - Point to Point (C): 1 1/8" - Thickness: 3/32" thick - Material: 304 S.S. - Price: $4.40 each

Combine this purchase with other items in our store for discounted ground shipping in the continental USA.
<strong>Sea Dog Stainless Steel Deck Plate Key</strong> ( 7" Size )
Regular Price: $7.39
Sale Price: $5.89
Stainless Steel Deck Plate Key by Sea Dog > 7" Size > Model No. 335699 > 304 S.S.

- A part of the Sea Dog line of heavy duty stainless steel marine grade hardware, so these universal deck keys are built to last.

Product Features:

Crafted from Stamped 304 Stainless Steel, this handy little tool should last you forever.

This deck plate key fits all cast stainless steel Sea Dog Deck Fill Caps, Model #'s SD-351320 - SD-351331 and SD-351350 - SD-351353.

Also fits Sea Dog Deck Plates, Model #'s SD-335633 - SD-335646.

Instead of the cheap plastic versions you will snap in a season, step up to the last deck plate key you will ever need to buy.

Specifications & Pricing:

Product Type: Sea Dog Stainless Steel Deck Plate Key - Size: 7" - Model # SD-335699 - Length: 7" (10.2cm) - Material: 304 Stamped S.S. - Weight: 2.2 oz (62.4 g) - Price: $5.89 each or Qty. 10+ for $5.32 each

Combine this purchase with other items in our store for discounted ground shipping in the continental USA.
<strong>Sea Dog Bronze Adjustable Deck Plate Key</strong> - <strong>Two Pin Style</strong> ( 7 3/4" Size )
Regular Price: $52.49
Sale Price: $39.50
Adjustable Deck Plate Key by Sea Dog > Cast Bronze > Model No. 335680 > 7 3/4" Size

- A part of the Sea Dog line of heavy duty sand cast bronze marine grade hardware, so these adjustable deck keys are built to last.

Product Features:

Crafted from satin finished bronze with stainless steel pins, this handy little tool should last you forever.

Opens to a maximum of 6".

Has two sizes of stainless steel pins that come with, 3/16" and 5/16", allowing it to fit most plates or caps.

Pre-drilled hole on the handle end allows you to add a lanyard if you wish.

This deck plate key fits all cast stainless steel Sea Dog Deck Fill Caps, Model #'s SD-351320 - SD-351331 and SD-351350 - SD-351353.

Also fits Sea Dog Deck Plates, Model #'s SD-335633 - SD-335646.


Instead of the cheap plastic versions you will snap in a season, step up to the last deck plate key you will ever need to buy.

Specifications & Pricing:

Model # Max Width (B) Length (A)
335680 6" 7 3/4"


Product Type: Sea Dog Bronze Adjustable Deck Plate Key - Size: 7 3/4" x 6" - Model # SD-335680 - Length (A): 7 3/4" - Maximum Opening Width (B): 6" - Pin Width (C): 1 3/8" - Large Pin Diameter (D): 5/16" - Small Pin Diameter (E): 3/16" - Material: Satin Finished Bronze & 304 Stamped SS Pins - Weight: 10.9 oz - Price: $39.50 each or 5+ for $35.92 each

Combine this purchase with other items in our store for discounted ground shipping in the continental USA.




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