A first plate of a shield shell includes a flat plate member and at least one crimping piece extending from an outer circumferential edge of the flat plate member and folded back to one surface of the flat plate member in a penetrating direction of a first through hole. A second plate of the shield shell piled on the flat plate member with a developed portion of a shield member held by and between the flat plate member and the second plate is crimped and fixed to the one surface of the flat plate member by a tip end of the crimping piece. A tabular portion of the shield member passes through the first through hole or a second through hole and extends out of the shield shell.