3" 400
4" 500
360-degree stainless steel concealed door pivot hinges available in 3-inch and 4-inch sizes for smooth top-and-bottom shaft rotation.Product FeaturesMaterial: Heavy-duty, brushed stainless steel that resists rust and corrosion.Rotation: Full 360-degree turning axis for hidden or pivot door designs.Design: Up-and-down shaft configuration featuring a solid steel ball bearing to reduce friction and noise during movement