Patent ID: 7465136

Claim:
An insert nut comprising; a shank formed by winding a metal plate having opposite edges to form a polygonal hollow portion and a cylindrical hollow portion, the polygonal hollow portion being formed at a first end of the shank, and the cylindrical hollow portion being formed at a second end of the shank; a female screw formed inside the cylindrical hollow portion; a pattern corresponding to the female screw formed outside the cylindrical hollow portion; a connection formed by connecting the opposite edges each other, the connection being formed on the polygonal hollow portion and the cylindrical hollow portion; and a resin layer formed outside the cylindrical hollow portion, wherein a press process is not applied to a first part of the metal plate to form the polygonal hollow portion, but applied to a second part of the metal plate to form the female screw, wherein the shank further comprises a bridge portion formed between the polygonal hollow portion and the cylindrical hollow portion to separate the polygonal hollow portion from the cylindrical hollow portion.