National Hardware N223-867 287 Extra Heavy Gate Hinges in Black, 3-1/2" Authorized Replacement for Stanley Hardware Stock #S172-200 Designed for applications with narrow mounting surfaces, such as gates, barn and shed doors, storage bins, and tool boxes Tight pin allows right or left hand applications Designed for 2x4 or 4x4 post applications Can be used on full or half surface applications Offset screw holes for extra strength and to prevent wood from splitting Offset screw holes allow for extra strength and to prevent wood from splitting Exclusive bearing design eliminates metal to metal contact Reduces wear and increases life expectancy by up to 500-Percent Bearings provide for smooth, quiet operation and remain dimensionally and structurally sound in hot and cold climates All metal parts are plated prior to assembly to enhance rust resistance