In the connector housing 10, a side wall opening 10W is formed which is continuous to an upper half of an opposite side wall 10S2 from the rear surface opening 10R. A tapered protrusion 10M is provided to stand upward from a lower side opening end face 10W1 of the side wall opening 10W. In the terminal 20, a tapered engaging recessed part 20M is formed in a part opposed to the tapered protrusion 10M. In one side wall 10S1 of the connector housing 10, a tapered hole 10K is formed. In the terminal 20, a tapered protrusion 20K is formed which enters the tapered hole 10K. Thus, the terminal 20 slides in a transverse direction by a sliding operation of the tapers so that the terminal 20 is held in the connector housing 10.