Square polished stainless steel hinge 50x50mm - OEM

A4 stainless steel A4 steels, alloyed with molybdenum, are "acid resistant" and provide better corrosion resistance. A4 is used extensively in the cellulose industry, since this grade of steel was developed for boiling sulphuric acid. It is also suitable to some extent for chloride environments. A4 is also frequently used in the food and shipbuilding industries. Protruding Node Hinge A Protruding Node Hinge is a type of Hinge that is designed to allow a door to pivot around a fixed vertical axis, whilst providing a degree of strength to hold the door in place once it is opened or closed. This means that when fitted, the Hinges are virtually invisible, giving a more aesthetic appearance to the door and frame. Protruding Node Hinges are recessed into mortises cut into the door and frame. The technical dimensions are shown below: A x B to©thickness 50 x 50 5 Dimensions in mm Difference between Rolled Node and Protruding Node Hinges Protruding Knuckle Hinges are often considered more aesthetically pleasing than Roller Knuckle Hinges, as they are virtually invisible once the door is closed. However, Roller Node Hinges can be stronger and more durable than Protruding Node Hinges due to their more robust construction. The choice between these two types of Hinge will therefore depend on the specific needs of each project.