Lift-off or slip joint hinge is the type of hinge that allows a door to be separated by lifting without unscrewing the hinge, also known as loose joint hinge or take-apart hinge. These hinges are useful for home or business where need of opening the door is constant. i.e. traffic of people through the door is required certain time of the day or just more space is needed around the door. Sugatsune lift-off or slip joint hinges are made in stainless steel, and you can select not only screw-in but also weld-on type for situations that require a weld mount.