In this invention, metal terminals are held by a connecting member, connectable to a connector housing, so as to stabilize the posture of each metal terminal, thereby facilitating the fitting thereof with its mating metal terminal.According to the present invention, a connector includes a connector housing for receiving metal terminals therein, and a terminal holder connected to the connector housing in a two-stage manner, that is, first in a provisionally-connected condition and then in a completely-connected condition. In the provisionally-connected condition, a flexible deformable plate of the terminal holder rests on push-up projections of the connector housing to thereby allow the insertion and withdrawal of the metal terminal relative to a terminal receiving chamber. In the completely-connected condition, a terminal holding portion on the flexible deformable plate urges and fixes the metal terminal.