Heavy-duty gate hinge hot-rolled steel. Designed for applications with narrow mounting surfaces, such as gates, barn and shed doors, storage bins and tool. Tight pin allows right or left hand applications. For full or half surface applications. WeatherGuard - when subjected to 312 hours of salt fog spray testing (BHMA A138.18), zinc plated hardware showed severe corrosion while hardware with WeatherGuard protection withstood these harsh conditions with very little deterioration.