The heavy-duty 3-1/2" gate hinge is designed for 2X4 or 4X4 post applications. Patented bearing design eliminates metal-to-metal contact for smooth, quiet operation. Meets ANSI/BHMA A 156.20 bearing grade cycle requirements (100K). Coated with WeatherGuard Protection to withstand harsh weather conditions and prevent corrosion. 1 per pack.