Abstract: A connector system for interconnecting members used in forming various types of framing structures is disclosed. The connector is insertable in the hollow portion of the first member and when actuated, interconnects the two members together. One of the members has a slotted wall portion provided with opposing ledges. The connector, as secured in the second member, engages the ledges when actuated to snugly secure one member to the other. The connector is actuated by a cam inserted through an opening in the wall of the second member, such that when turned to a second position, engages the wall to force the connector further inwardly of the second member to draw together and snugly secure the two members. This type of connector is particularly useful in interconnecting frame members used in forming office partition walls, display panels and the like. The connector is releasable to allow dismantling and reuse of the connectors and the structural members thereby providing portability of the system.