A connector includes a terminal clasp, a flexible flat conductive component, a housing in which an electrical connection part of the terminal clasp protrudes out of an opening of a storage room, and a cover that covers the electrical connection part from outside together with at least part of the housing. The flexible flat conductive component includes an electrical connection region in which the electrical connection part is connected with a conductor, a peripheral region 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.