Abstract: The wall panels (14,16,18) of a wall panel system (12) are constructed with perimeter frames (22,24,26) each composed of tubular vertical edge members (40) interconnected with the ends of horizontal top members (42) and horizontal bottom members (46) by corner connectors (44). The corner connectors (44) have legs (84) that engage within the hollow ends of the frame members (40,42,46). A plurality of shear fins (86) extend transversely from the legs (84) with the transverse profile defined by the fins being greater than the interior envelope of the frame members so that as the corner connectors (44) are forged into the interiors of the frame members, the outer edges of the fins (86) are sheared so that the fins fit very snugly within the interiors of the frame members. The panels (14,16,18) are interconnected together by cam latches (126) composed of a pair of opposing spaced apart hooks (134a, 134b) that engage with mating catches (128) mounted on the opposing edge of the adjacent wall panel.