An electrical connector is for electrically connecting an electronic package with a circuit substrate. The connector includes a housing having a plurality of conductive terminals, a fastening device including a load plate for pressing the electronic package and a retaining member for securing the load plate. The load plate defines a first edge, a second edge opposite to the first edge, a third edge pivoted to the fastening device and a fourth edge adjacent to the first edge and the second edge. The four edges jointly define an opening in the middle thereof with the first and second edges each having a pressing portion. Corners of the opening near the third edge extend upwardly. During the rotation of the load plate, the pressing portions will abut against the electronic package prior to the corners near the third edge, and thereby prevent the corners from abutting against the electronic package.