Lewmar Size 40 Ocean Series Hatch Flange Base
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Lewmar Size 40 Ocean Series Hatch Flange Base Product Description
Engineered for Superior On-Water Performance
Discover the Lewmar Size 40 Ocean Series hatch flange base, a cornerstone for marine enthusiasts seeking unwavering reliability on demanding voyages. Crafted with precision for ocean-going vessels, this hatch stands out with its low-profile design that minimizes wind resistance while maximizing ventilation. The 1-inch flange base ensures a seamless fit on decks with flat surfaces, tolerating up to +/- 1mm variations for straightforward installations on most yachts and sailboats.
What sets this hatch apart is the smoke grey acrylic pane, tinted to block harmful UV rays without sacrificing natural light flow into cabins. At just 10.5 pounds, it keeps your boat's weight down—crucial for performance sailors—while the 3/8-inch thick acrylic delivers exceptional impact resistance against rogue waves or deck cargo shifts. Ideal for foredecks, cabins, or heads compartments, it supports 360-degree opening options when paired with compatible Ocean Series hardware, enhancing airflow during those sweltering anchorages.
Effortless Installation for DIY Boaters
Installing the Lewmar Size 40 Ocean hatch is a breeze for seasoned skippers or weekend warriors. Mount it to any flat deck using the specified fasteners: M6 or 1/4-inch screws at the hinge section for rock-solid pivot points, and 5mm countersunk (CSK) No.10 UNC or 2 BA screws for the lower frame. Always bed the flange with marine sealant to prevent leaks, and double-check your cut-out dimensions to avoid rework.
Pro tip: Before cutting, template the hatch on your deck with cardboard to confirm the 16 9/16-inch flat cut-out length aligns perfectly with surrounding gelcoat curves. This flange base's generous 2 15/16-inch radii hug rounded coamings effortlessly, preserving your boat's sleek lines.
Detailed Specifications at a Glance
| Feature | Details |
|---|---|
| Lower Frame | 1" Flange |
| Acrylic Colour | Smoke Grey |
| Hatch Weight | 10.5 lb |
| Acrylic Window Thickness | 3/8 in |
Precise Dimensions for Perfect Fitment
| Dimension | Measurement (in) |
|---|---|
| Length X (Flange) | 19 1/8 |
| Width Y (Flange) | 19 1/8 |
| Height Z | 1 9/16 |
| Radii R | 2 15/16 |
| Hinge Length HX | 3/16 |
| Hinge Width HY | 11 3/4 |
| Cut-Out Length Flat X1 | 16 9/16 |
| Cut-Out Width Flat Y1 | 9/16 |
| Cut-Out Radii Flat R1 | 1 11/16 |
Long-Lasting Durability with Simple Care
Lewmar's Ocean Series is built to endure salt spray and sun exposure, but regular upkeep keeps it performing like new. Wipe the smoke grey acrylic with mild soap and freshwater after every cruise to fend off salt buildup. Lubricate hinges annually with marine-grade grease, and inspect seals for compression set during winter layups. This hatch's robust construction means fewer replacements, saving you time and hassle on extended passages.
For racing fleets or liveaboards, the lightweight design pairs perfectly with modern composite decks, maintaining balance without compromising strength. Sailors rave about its watertight integrity in beam seas, thanks to the thoughtful flange geometry.
Frequently Asked Questions
What surface tolerance does the Lewmar Size 40 Ocean hatch require?
It fits flat surfaces with a maximum tolerance of +/- 1mm, ensuring a secure mount on most boat decks.
What fasteners are needed for installation?
Use M6 or 1/4-inch screws at the hinge section, and 5mm CSK No.10 UNC or 2 BA screws for the lower frame.
What is the weight and acrylic thickness of this hatch?
The hatch weighs 10.5 lb with 3/8-inch thick smoke grey acrylic for durability and UV protection.
What are the cut-out dimensions for the Size 40 hatch?
Cut-out specs are 16 9/16 inches length (flat X1), 9/16 inches width (flat Y1), and 1 11/16 inches radii (flat R1).
Is the flange size suitable for rounded deck coamings?
Yes, the 1-inch flange features 2 15/16-inch radii to conform smoothly to curved surfaces.
What color is the acrylic window?
Smoke grey, providing excellent light transmission while reducing glare and UV exposure.
How does the overall flange measure?
The square flange is 19 1/8 inches by 19 1/8 inches, with a height of 1 9/16 inches.
- Fit to a flat surface with a maximum tolerance of +/- 1mm.
- Fastening size at hinge section use (M6 / 1/4").
- Fastening size for lower frame use 5mm CSK screw No.10 UNC 2 BA.
| Lower Frame (in) | Acrylic Colour | Hatch Weight (lb) | Acrylic Window Thickness (in) |
| 1" Flange | Smoke Grey | 10.5 | 3/8 |
Dimensions
| Length X (in) | Width Y (in) | Height Z (in) | Radii R (in) | Hinge Length HX (in) | Hinge Width HY (in) | Cut-Out Length Flat X1 (in) | Cut-Out Width Flat Y1 (in) | Cut-Out Radii Flat R1 (in) |
| 19 1/8 | 19 1/8 | 1 9/16 | 2 15/16 | 3/16 | 11 3/4 | 16 9/16 | 9/16 | 1 11/16 |
"Fit to a flat surface with a maximum tolerance of +\/- 1mm. Fastening size at hinge section use (M6 \/ 1\/4\"). Fastening size for lower frame use 5mm CSK screw No."
Frequently Asked Questions (FAQ) About Lewmar Size 40 Ocean Series Hatch Flange Base
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Who is the Lewmar?
How to describe Lewmar Size 40 Ocean Series Hatch Flange Base?
What is the highlights of Lewmar Size 40 Ocean Series Hatch Flange Base?
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Lewmar Size 40 Ocean Series Hatch Flange Base Technical Specifications
| Type: | |
|---|---|
| Vendor: |
Lewmar |
| Weight: |
7.0 lb |
Lewmar Size 40 Ocean Series Hatch Flange Base User Reviews
Lewmar Size 40 Ocean Series Hatch Flange Base Shipping & Return
| Shipping Weight: |
7.0 lb |
|---|---|
| Box Sizes: |
1.00 (h) x 1.00 (w) x 1.00 (l) |
| Cubic Feet: |
1.0 |
| Returnable: |
Yes |
| USPS First Class: |
Yes |
| P65: |
Yes |
For detailed shipping policy please check our Shipping Policy and you can find our Return and Refund Policy here.