Thread Rolling Screw Technology, Screw for High Strength Steel br br Company webpage: br br br New Rolok HS® screws for assembly into high strength steel without a pre-tapped hole. This new screw thread design uses an innovative thread flank configuration and spiral lobe features to roll form a mating thread into high strength steel. Cost savings by using this fastener can be realized and provides alternate methods of automotive car assembly. br br For more product information, please visit: br br br Rolok HS® is a registered trademark of Semblex Corporation.