An apparatus for tying elongated members together includes an attachment element and a mating centering element. In use, the attachment element is attached to one of the members to be tied and the centering element is used to align and juxtapose the attached member to a stationary member. Two coils of wire are wrapped around the attachment element and centering element. Upon separation of the rod attachment and rod centering elements, the coils of wire are adapted to tighten around the aligned members and tie the members together. The apparatus of the invention is particularly suited to blind tying reinforcing rods in a structure formed of concrete masonry units.
