To prevent a terminal fitting from being excessively deformed when a base part of an electric bulb is inserted into a frame body.

A socket 7 including a cylindrical frame body 15 to which a base part 11 of an electric bulb 9 is to be inserted, and a terminal fitting 5 for pressing, holding and electrically connecting the base part 11 to be inserted into the frame body 15, comprises: an arm piece 19 formed by cutting out the frame body 15 from an opening end of the frame body 15, for elastically supporting the terminal fitting 5; and an abutment surface 37 provided so as to be spaced from the arm piece 19, and to be abutted on a back surface 39 of the arm piece 19, opposed to a surface facing the terminal fitting 5.