Electrical connector having improved retention devices

An electrical connector comprising:

• an insulative housing receiving a plurality of terminals therein, the housing defining a recess at conjunction of side and bottom faces thereof, the recess extending toward a mating surface of the housing and terminated at a first peripheral wall thereof, the first peripheral wall defining a slot extending toward the mating surface and communicating with the recess;
• and
• a fastener securely received in the recess and having an interference section fixedly retained in the slot;
• wherein the housing provides a cantilever beam extending in the recess from the first peripheral wall in a direction away from the mating surface of the housing, the fastener being retained to the cantilever beam;
• wherein the recess provides a second peripheral wall parallel with the side face of the housing and a body portion of the fastener is received in a gap defined between an inner surface of the cantilever beam and the second peripheral wall;
• wherein the recess provides a third peripheral wall generally parallel with the bottom face of the housing and a flange of the fastener, laterally extending from the body portion, is received in a slit defined between a top edge of the cantilever beam and the third peripheral wall.