Hellermanntyton inside serrated cable ties hellermann tyton 116 05412 the hellermanntyton 138 05412 is a serrated cable tie manufactured entirely of plastic and recyclable the design of the head guarantees a high tensile strength whilst allowing a very low insertion force this combined with the bent tail design of the tie ensures a simple and quick installation whilst the cable tie is easily installed by hand manually tensioning tools can be used to ensure a consistent and safe installa