Marine 316 Stainless Steel Hinges - Heavy Duty Boat Hatch & Cabinet Hardware 1.5 Inch 3 Hole & 38mm 50mm 2 Hole Options

Marine 316 Stainless Steel Hinges - Heavy Duty Boat Hatch & Cabinet Hardware 1.5 Inch 3 Hole & 38mm 50mm 2 Hole Options

Name: Marine 316 Stainless Steel Hinges - Heavy Duty Boat Hatch & Cabinet Hardware 1.5 Inch 3 Hole & 38mm 50mm 2 Hole Options
Brand: HomeDIYer
SKU: HKTBCLA390001
Price: 25.8 USD
Availability: InStock

$25.80 USD

In stock

By HomeDIYer®

Quantity Discount Promotion

Specification:1.5" 3-Hole Hinge

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150 Hastings Drive
Buffalo Grove IL 60089
United States

+18479091828

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⛵ Heavy Duty Marine 316 Stainless Steel Hinges for Boat Hatches, Cabinets & Boxes

Whether you are rebuilding a boat hatch, replacing worn-out hinges on a storage locker, or upgrading your RV cabinet hardware, these marine-grade 316 stainless steel hinges are built to last. Made with a solid, thick plate and a high-strength anti-pullout pin, they provide smooth, reliable operation even in harsh saltwater environments. Available in three versatile sizes to fit everything from small access panels to heavy-duty engine compartment doors.

🔩 Key Features of These 316 Stainless Steel Hinges

Premium 316 Marine Grade Stainless Steel: Unlike cheaper 304 steel, these hinges are manufactured using high-quality 316 stainless steel with a mirror polish. They offer superior resistance to corrosion, rust, and pitting from saltwater, making them perfect for boats, yachts, and ships.
Heavy Duty Construction: Available in 2mm and 5mm thickness options. The solid butterfly or square leaf design ensures these hinges can handle heavy doors and lids without bending or warping over time.
Anti-Pullout Solid Pin: The knuckle joint features an integrated anti-pullout pin (as seen in our photos), preventing the pin from sliding out even under heavy vibration or operational stress.
Multiple Size Options for Every Application: Choose the right hinge for your job. We offer a 38x38mm 2-hole hinge for light cabinets, a 50x50mm 2-hole thick hinge for medium doors, and a 1.5-inch 3-hole wide hinge (75mm wide) for wider hatches and box covers.
Easy Installation & Wide Application: Comes with countersunk holes for flush screw mounting. Not just for marine use, these are also excellent heavy-duty hinges for RVs, campers, trucks, and tool boxes.

📐 Product Specifications

Parameter	38mm Square 2-Hole	1.5 Inch 3-Hole Wide	50mm Square 2-Hole Heavy
Material	316 Marine Grade Stainless Steel
Overall Width (Open)	38mm (1.5 inches)	75mm (2.95 inches)	50mm (1.97 inches)
Overall Height (Closed)	38mm (1.5 inches)	40mm (1.57 inches)	50mm (1.97 inches)
Plate Thickness	2mm	5mm	5mm
Number of Holes	4 holes (2 per side)	6 holes (3 per side)	4 holes (2 per side)
Hole Diameter	4mm	4mm	5mm
Hole Spacing (Horizontal)	22mm	20mm (between holes on the same side)	34mm
Surface Finish	Mirror Polished / Passivated
Ideal For	Small cabinets, panels	Hatches, tool boxes	Heavy doors, trunks

❓ Frequently Asked Questions About Marine Hinges

What is the difference between 304 and 316 stainless steel for boat hardware?

316 stainless steel contains molybdenum, which makes it far more resistant to saltwater and chloride corrosion than 304 stainless steel. For boats, including fishing boats, yachts, and any vessel exposed to spray or salt, 316 is the recommended choice to prevent pitting and rust over time.

Which hinge thickness do I need for my boat hatch?

We offer two thickness options: 2mm and 5mm. The 2mm hinges (like the 38x38mm style) are great for light cabinet doors or access panels. The 5mm heavy-duty hinges (like the 50x50mm square and 1.5 inch 3-hole wide models) are built for high-traffic areas, heavy hatches, or locker lids that hold weight.

Are screws included with these hinges?

Screws are not included with the hinge itself. We recommend using marine-grade 316 stainless steel screws to match the hinge. The counter-sunk holes are standard sizes (4mm or 5mm diameter), so you can easily pick up screws from any local hardware store or marine supply shop.

Can I use these hinges for my RV or truck toolbox?

Absolutely! While these are marine-grade, they are also excellent for RVs, campers, and trucks. The rust-resistant stainless steel and heavy-duty construction make them perfect for exterior storage compartments and tool boxes exposed to rain or road salt.

Will the pin come out over time?

No. These hinges feature a solid knuckle joint with an integrated anti-pullout design. The pin is secured permanently into the assembly, so it will not slide out, even with heavy vibration or frequent opening and closing of the door or hatch.