To provide a hinge which includes a sheet metal bracket having a cylindrical part integrally formed at one end of a louver board by curling and a metal shaft pressed into the cylindrical part, and which can prevent leakage of a lubricant.

A hinge includes a sheet metal bracket 4 which has a cylindrical part 3 integrally formed at one end of a louver board 2 by curling, and a shaft 5 which is pressed in a relatively rotatable manner into the cylindrical part 3. A lubricant reservoir groove 6, which assumes a shape having both ends closed with end walls 6a and 6b, is provided on the inner surface of the cylindrical part 3 or the outer peripheral surface of the shaft 5.