A connector comprising: a terminal clasp; a flexible flat conductive component in which a conductor and an insulator that are flexible are stacked and formed in a flat plane, the conductor being connected with an electrical connection part of the terminal clasp provided perpendicular to the plane; a housing in which a terminal connection part of the terminal clasp is stored in a storage room and the electrical connection part of the terminal clasp protrudes out of an opening of the storage room; and a cover that is connected with the housing through insertion and covers the electrical connection part from outside together with at least part of the housing, wherein the flexible flat conductive component includes an electrical connection region (40a 1) in which the electrical connection part is connected with the conductor, a peripheral region (40a 2) enclosing the electrical connection region, an extension region extending out of the housing and the cover connected with each other, and at least two fitting holes provided on the extension region side in the peripheral region (40a 2), and the housing includes an installation surface through which the opening of the storage room is provided and on which flat planes of the electrical connection region and the peripheral region (40a 2) are placed, and a fitting protrusion that is provided for each fitting hole perpendicularly from the installation surface and is fitted into the fitting hole without backlash, characterized in that the flexible flat conductive component includes at least two through-holes provided on a side opposite to the extension region side in the peripheral region (40a 2), and the cover includes a protrusion that is perpendicularly provided for each through-hole and inserted into the through-hole with play when the housing and the cover are at a connection completed position. a terminal clasp; a flexible flat conductive component in which a conductor and an insulator that are flexible are stacked and formed in a flat plane, the conductor being connected with an electrical connection part of the terminal clasp provided perpendicular to the plane; a housing in which a terminal connection part of the terminal clasp is stored in a storage room and the electrical connection part of the terminal clasp protrudes out of an opening of the storage room; and a cover that is connected with the housing through insertion and covers the electrical connection part from outside together with at least part of the housing, wherein the flexible flat conductive component includes an electrical connection region (40a 1) in which the electrical connection part is connected with the conductor, a peripheral region (40a 2) enclosing the electrical connection region, an extension region extending out of the housing and the cover connected with each other, and at least two fitting holes provided on the extension region side in the peripheral region (40a 2), and the housing includes an installation surface through which the opening of the storage room is provided and on which flat planes of the electrical connection region and the peripheral region (40a 2) are placed, and a fitting protrusion that is provided for each fitting hole perpendicularly from the installation surface and is fitted into the fitting hole without backlash, characterized in that the flexible flat conductive component includes at least two through-holes provided on a side opposite to the extension region side in the peripheral region (40a 2), and the cover includes a protrusion that is perpendicularly provided for each through-hole and inserted into the through-hole with play when the housing and the cover are at a connection completed position.