Square hinge, Wing hinge, Oblong hinge, Piano hinge and loads more. Our Hinges are available in high quality 304 and 316 steel. 304 stainless steel hinges would be primarily used for interior doors to cupboards, windows and more. Whereas marine grade 316 stainless steel hinges can be used in marine enviroments, such as boats, hatches and gates, due to its high corrosion resistance. All our hinges include a free pack of 20 screws.