1. IN A CONNECTOR FOR JOINING STRUCTURAL ELEMENTS TOGETHER, THE COMBINATION OF A BODY HAVING AN INTERNAL TRACKWAY FORMATION OPENING THROUGHOUT ITS EXTENT TO THE PERIPHERY OF THE BODY THROUGH A REDUCED THROAT FORMATION, ELECTRICAL CONDUCTOR MEANS MOUNTED WITHIN AND EXTENDING ALONG SAID INTERNAL TRACKWAY AND PRESENTING OPPOSED SURFACES OF CONTACT THEREALONG, SUPPORT MEANS INSERTABLE IN A FIRST DETERMINED POSITION THROUGH SAID REDUCED THROAT FORMATION, SAID SUPPORT MEANS CARRYING SECOND ELECTRICAL CONDUCTOR MEANS HAVING CONTACT TERMINAL PORTIONS UPSTANDING THEREFROM AT OPPOSITE SIDES, SAID TERMINAL PORTIONE BEING ARRANGED UPON INSERTION OF SAID SUPPORT MEANS WITHIN SAID REDUCED THROAT FORMATION TO REGISTER WITH SAID INTERNAL TRACKWAY AND UPON TURNING MOVEMENT BEING IMPARTED TO SAID SUPPORT MEANS TO MOVE SAME TO A SECOND DETERMINED POSITION TO MAKE CONTACT RESPECTIVELY WITH THE OPPOSED SURFACES OF SAID FIRST ELECTRICAL CONDUCTOR MEANS, AND MEANS FOR SECURING SAID SUPPORT MEANS TO SAID BODY IN SAID SECOND DETERMINED POSITION.