The present disclosure includes: a pair of left and right half body parts, each of which includes a connector main body along with multiple terminals installed in this connector main body; and a reinforcing bracket for coupling the half body parts, wherein connector main bodies of each of the half body parts are abutted and installed at main body end parts formed on both ends of the connector main bodies, wherein each connector main body extends in the longitudinal direction thereof, in addition to including a projection for retaining the terminals, an extension end part connected to both ends in the longitudinal direction of this projection, and an end wall part extending from this extension end part towards the counterpart half body part, and wherein each of the main body end parts include mutually abutted left and right end wall parts along with left and right extension end parts with these end wall parts extending therefrom.