Bomar 4000 and 4100 Series Tread Plate Hatches deliver rugged durability and a sleek, semi-flush finish for any deck. Available in aluminum diamond plate (4000) or smooth surface (4100), these drop-in hatches feature 5 PSI water resistance to secure your vital dry areas. Fully customizable in size, texture, and bespoke branding, Bomar hatches are engineered to outperform the competition and outlast the elements.
4000 Series Tread Plates
Standard Features
The 4000 Series tread plate access hatches by Bomar, featuring:
Download Product Sheet
- Heavy Duty, Extruded Aluminum Construction
- Stainless Steel Frame Options
- Weld-In or Bolt-In Installation
- Clear Anodized Standard
- Built & Tested for Harsh Marine Environments
- 1/4 in Off Mounting Surface
- Diamond Plate (Checker Plate) Lid Design
- Best In Class Ergonomics & Space Savings
- D Shape Handles Standard
- Allen Drive Handle Available
- Quick Release Handle Available
4000 Series Tread Plates
Additional Options
4000 Series access hatch personalization options, for any application.
- Various Sizes to Accommodate Boat Builders & Enthusiasts
- Available in Square, Rectangle & Round Form Factors
- Styles: Lift Out, Hinged, J-Arm, Weathertight, or Cover
- Inside/Outside Opening
- Finish Options: Mill, Anodized or Powder Coating
- Custom Engraving: Logos, Markings or Labeling
- Gas Assist Struts
- CE & ABYC Approvals
- Custom Powder Coating
- Coaming Drains
- View Ports
- Bomar Spare Parts & Installation Accessories Readily Available
4000 Series Tread Plates
Key Materials
Quality construction, built to last at sea.
- Bomar uses 6061 extruded aluminum to construct our 4000 Series Tread Plate hatches. The extrusions are pressure formed at the Bomar manufacturing facility in New Hampshire.
- The 4000 Series Tread Plate hatches are professionally assembled in-house with 316L, marine grade, stainless steel T-handle & fasteners. Stainless steel is ideal for harsh marine environments due to it’s rust & corrosion resistance, strength and luster.
Bomar 4000 Series Tread Plate
Access Hatch Size Chart
| Part # | Hole Cut Out | Shape | Product Sheet | PDF Drawing |
|---|---|---|---|---|
| N4010R | 10.63″ (270 mm) | Circle | DOWNLOAD | DOWNLOAD LIFT OUT |
| N40127 | 24 1/2″ x 16 1/2″ (622 mm x 419 mm) | Rectangle | DOWNLOAD | DOWNLOAD HINGED DOWNLOAD LIFT OUT |
| N40128 | 30 1/2″ x 24 1/2″ (774 mm x 622 mm) | Rectangle | DOWNLOAD | DOWNLOAD HINGED DOWNLOAD LIFT OUT |
| N40129 | 12 1/2″ x 12 1/2″ (317 mm x 317 mm) | Square | DOWNLOAD | DOWNLOAD HINGED DOWNLOAD LIFT OUT |
| N40131 | 30 1/2″ x 20 1/2″ (774 mm x 520 mm) | Rectangle | DOWNLOAD | DOWNLOAD HINGED DOWNLOAD LIFT OUT |
| N40132 | 24 1/2″ x 24 1/2″ (622 mm x 622 mm) | Square | DOWNLOAD | DOWNLOAD HINGED DOWNLOAD LIFT OUT |
| N40133 | 36 1/2″ x 24 1/2″ (927 mm x 622 mm) | Rectangle | DOWNLOAD | DOWNLOAD HINGED DOWNLOAD LIFT OUT |
4000 Series Tread Plates
Frequent Questions
- Bomar is the leading manufacturer of hatches & portlights for enthusiasts and builders since 1947. We truly stand behind our products and pride ourselves on our outstanding customer service. All Bomar hatches are backed by our 1 year warranty against any manufacturing defects.
- Only the individual hatch is included with purchase. Hardware, spare parts & accessories sold separately.
- Hatches are safely and neatly packaged for residential or commercial delivery. For large quantities, delivery to a commercial address is highly recommended.
- Yes, Bomar ships products worldwide across the globe. Shipping charges will be determined and billed separately once your order is ready to ship.
- Bomar offers replacement parts such as gaskets, dogs, handles, lenses & more for most hatches produced after 1999.
- Explore Spare Parts
- Customers may purchase these replacement items from an authorized dealer. Hatch lifespan will vary case by case depending on environment, use, and individual care.
4000 Series Tread Plates
Purchase Options
Purchase 4000 Series Tread Plate access hatches by Bomar.
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Bomar, a division of Pompanette, LLC continues trustfully serving the worldwide marine community since 1947. We offer a variety of safe, secure, private and convenient purchasing options for OEM’s, dealers, distributors & end-users.