Disclosed is a socket comprising a base member and a top plate member. Substantially U-shaped pin connectors are mounted in the top face of the base member and include a contact pin extending through the base member. The top plate member is aligned substantially parallel with and spaced from the base member and adapted to move toward and away from the base member. The top plate member includes an aperture aligned with each U-shaped pin connector and includes a wedge-shaped body positioned to spread the legs of each U-shaped pin connector when the top plate portion is moved toward the base member.