Abstract: The cable tie comprises an elongate strip with a locking head formed at one end of the strip and having a passage or opening therethrough. The strip has spaced apart teeth formed in or on one side thereof. The passage or opening in the locking head has at least one tooth on one side thereof and at least one pressure rib on the other side thereof.

Abstract: A plastic bobbin consisting of a hollow cone defined by a thin-walled sheath includes an inner skeletal frame of longitudinally-spaced circumferential ribs and radially-spaced longitudinal ribs defining an inner support surface for a mandrel with a sheath having segments of varying wall thickness and the outer surface having constant taper with respect to the bobbin axis. Some of the longitudinally-extending ribs may be partial ribs defined in each of the segments, the bobbin has a helical ridge of a particular trapazoidal cross-sectional to provide a guiding surface for the yarn being wound thereon.