Mechanical couplings for reinforcing bars

There is disclosed a mechanical coupling for two rebars. The coupling includes a first extremity disposed on a first of the two rebars, and a second extremity disposed on a second of the two rebars. Each of the first and second extremities are machined to effect an interlocking, form-fit connection between the two rebars, wherein the form-fit connection prevents separation of the extremities and inhibits axial displacement of the two rebars with respect to each other. The coupling further includes a covering disposed about the two extremities when the extremities are interconnected via the interlocking, form-fit connection. Also disclosed and described is a related method.