The gate hinges are made of 304 stainless steel, smooth , strong and , high load capacity, can be installed on flat , square wooden application, very suitable for connecting wood or concrete and chain-link fence . Specifications: The fence gate hinge measures 4.6Inch(L) x 1.8Inch(W) x 1.8Inch(H) with 5/8Inch hinge pin, 0.2Inch thickness; The mother door hinge is 5/8Inch in diameter, only suitable for 1-3/8Inch outer diameter posts or pipes. Widely used: The post mother hinge can be used in many different occasions, such as fence , barns, farm , etc., not only can be installed as a new installation, but also can replace old doors to operate smoothly, suitable for most common doors., Weight: 1.53882658876 Pounds, Manufacturer: Aisuoka