These boat hinges are made of 316 stainless steel, which is highly resistant to rust, corrosion, and wear, ensuring durability and longevity. They are perfect for outdoor applications, such as boat doors, yacht doors, and trailer doors, as they can withstand the harsh marine environment. The hinges feature a flush mount design, which provides a seamless and elegant look to any application. They are easy to install and require no drilling or welding, making them a convenient and cost-effective solution for boat and yacht owners.