Abstract: An elastic tie cord is attached to a fastener to form an infinitely adjustable tie cord assembly. A finger aperture is provided on the fastener for applying tension to the cord in cooperation with a remote loop at the other end of the cord. A hook on the fastener adjacent the finger aperture includes a curved, tapered slot narrowing to an opening having a width less than the normal diameter of the cord. The cord is tensioned around an object to be secured and the reduced cord diameter is wedged into the slot opening at any desired point on the cord. Upon release of the finger aperture and the remote loop, the cord diameter beyond the fastener returns to normal, wedging the cord firmly in the slot to maintain tension on the portion of the cord around the secured object.