v287, 3-1/2", galvanized, extra heavy gate hinge, designed for applications with narrow mounting surfaces, such as gates, barn & shed doors, storage bins, & tool boxes, designed for 2" x 4" or 4" x 4" post applications, tight pin allows right or left hand applications, designed for full or half surface applications, offset screw holes for extra strength & to prevent wood from splitting, manufactured from hot rolled steel, visual pac.