Plates That Work Hard and Look Good
tread plates
Bomar’s 4000 Series Tread Plate Access Hatches are built for the rigors of emergency and specialty vehicles—combining heavy-duty aluminum construction, diamond plate styling, and all-weather durability for secure, slip-resistant access in high-performance fleet environments.
Designed for toughness. Finished with style.
Designed for the demands of emergency and specialty vehicles, Bomar’s 4000 Series Tread Plate Access Hatches combine heavy-duty aluminum construction, non-skid diamond plate styling, and all-weather reliability—delivering secure, slip-resistant access where it matters most.
Key Features:
- Marine-grade aluminum plate and frame
- Diamond (tread) or smooth plate surface options
- Optional stainless steel frames and hardware
- Locking D-handle, Allen, or Quick Release handle options
- Low-profile lid design (1/4″ off mounting surface)
- Glazed-in or bolt-in installation styles
- Clear anodized, mill finish, or powder coated (black, white, anodic natura)
- Custom sizes, logos, and finishes available
- Styles include lift-out, hinged, j-arm, and watertight versions
- Rated to 5 PSI water resistance
4000 Series
Tread Plate Access Hatches
Available in both tread (diamond plate) and smooth plate styles, the 4000 Series can be customized with logos, gas struts, lanyards, or reinforced lids for mission-critical builds.
Applications:
Step Platforms
Tool & Equipment Compartments
Underbody Storage Access
Roof & Ladder Access Points
- Custom Panel Integration
Standard Features
Extruded Plate & Frame
- Heavy Duty, Extruded Aluminum Construction
- Stainless Steel Frame Options
- Weld-In or Bolt-In Installation
- Clear Anodized Standard
- Built & Tested for Harsh Outdoor Environments
Low Profile Design
- 1/4 in Off Mounting Surface
- Diamond Plate (Checker Plate) Lid Design
- Best In Class Ergonomics & Space Savings
Rugged Operation Handles
- D Shape Handles Standard
- Allen Drive Handle Available
- Quick Release Handle Available
Key Materials
Aluminum
- 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.
Stainless Steel
- 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 outdoor environments due to it’s rust & corrosion resistance, strength and luster.
Additional Options
Flexible Sizing
- Available in Multiple Sizes to Fit OEM Builds and Custom Projects
- Offered in Square, Rectangle & Round Form Factors
Personalization Options
- Styles: Lift Out, Hinged, J-Arm, Weathertight, or Cover
- Inside/Outside Opening
- Custom Logo Engraving
- Gas Assist Struts
- CE & ABYC Approvals
- Custom Powder Coating
- Bomar Spare Parts & Installation Accessories Readily Available
what makes us different
Why Choose Bomar Tread Plates?
Built Tough for Emergency Use
Engineered with heavy-duty aluminum and a non-skid surface, the 4000 Series stands up to the demands of emergency and specialty vehicle fleets.
Custom Fit for Any Vehicle
Available in a range of sizes and configurations to seamlessly integrate into fire trucks, ambulances, service vehicles, and specialty builds.
Built for Strength, Finished for Fit
Precision-welded construction delivers rugged performance, while clean edges and flush mounting ensure a professional-grade appearance.
American Design, Active Worldwide
Proudly manufactured in the USA and trusted globally by OEMs and upfitters who demand durability, safety, and performance without compromise.
Built Strong. Trusted Worldwide.
Bomar’s 4000 Series Tread Plates continue a proud tradition of American-made performance—engineered for strength, built to endure. Trusted by professionals worldwide, these access hatches deliver uncompromising durability and reliability in the most demanding fleet and vessel applications.
Explore other Emergency & Specialty Vehicle Closures
Ready to Build Stronger Fleets?
Whether you’re building fire trucks, rescue vehicles, or utility response fleets—Bomar parts keep your crew moving safely and efficiently.
