Abstract: A socket connector includes a socket housing in which an island part and a peripheral wall surrounding the island part project upward from a bottom plate, a plurality of socket contacts arranged in the socket housing, and two protective metal fittings. In a cutting step, a half-dome part of the two protective metal fittings is formed by cutting a metal plate in such a way that a dome part in a symmetrical shape formed by drawing in the metal plate is split into two halves along a line of symmetry. In a press-fitting step, two press-fitting parts of each socket hold-down are press-fit into two long walls, respectively.