Abstract: A clamp device for gripping a cable or rope has two essentially semi-cylindrical jaws with longitudinal channels in their flat faces. The jaws can interlock at one end for pivotal movement relative to each other so as to bring the channels into register with each other, defining a cavity in which a rope or cable may be gripped, the jaws being clamped together by for example a screw clamp device engaging the ends of the jaws opposite the interlocking ends. The screw clamp device may serve for the attachment of hooks, eyes or shackles to the clamp device.