MATERIAL: : The window hinges are made of 304 stainless steel, which is high in strength, rustproof, wind and rainproof, has strong loadbearing capacity, is wearresistant, corrosionresistant, and can be used for a long time INSTALLATION: : First, you need to ensure that the mounting hole of the movable rod is parallel to the clamping plate on the fixed rod, and then use a screwdriver and screws to fix the clamping plate connecting the movable rod and the window sash. Place the movable rod on the groove of the window frame, and after ensuring that the window can be closed normally, open the window sash slightly and fix the mounting holes at both ends of the movable rod DESIGN: : The casement window hinge has two connecting rods, a fixed rod and a movable rod. When the window moves, the nut slider on the fixed rod can adjust its position to adapt to the angle of the window opening. The rivet connecting the movable rod to the fixed rod allows the movable rod to rotate flexibly, and the window can be opened outward or inward. The window will not close automatically after opening WIDE APPLICATION: : The casement window hinge can be used for windows of various materials, such as aluminum alloy, wood, iron, or other materials. In addition to being used on windows, hinges can also be used on wood cases, boxes, doors, and other objects that need to be opened and closed SIZE & PACKAGE: : Length: 304mm/11.97"; Base Width: 13.5mm/0.53"; Thickness: 2.5mm/0.1"; Hole Inner Diameter: 5mm/0.2"; Opening Angle: 90; Package: 2pcs Casement Window Hinges