Stanley Hardware S836-247 CD6216 TruClose Spring Hinge in Black, 3-9/16" x 5-1/4", 2 piece 2 pack Alignment ridges ensure proper positioning and alignment Stainless steel internal spring Will not rust, bind, sag or stain expensive fence materials Patented tension adjustment is safe and easy. No special pins or tools required Extra wide hinge provides superior strength and support for large posts found with vinyl and wood gates