Abstract: Apparatus for fastening includes a linkage and a body. The linkage has an end enlarged to form a ball. The body forms a carabineer's hook. A side of the body has a guideway which is open at a side and at an end of the body. Most of the guideway is dimensioned to receive the linkage, but not the ball. Near the end of the body, the guideway forms a dock which opens at the side, wide enough to receive the ball. A slide is held in the guideway and has a fork dimensioned to receive the linkage while blocking the ball. The slide is movable toward and away from said end so that the fork alternately uncovers and partially covers the dock, alternately confining and releasing the ball. The linkage is free to rotate through at least 90 degrees, from parallel to the guideway to normal to the side, while the fork confines the ball in the dock. Optionally, the linkage in hingedly connected to a pedestal adapted for attachment to objects.