When thread rolling forming into steel, aluminum or steel materials consider the Rolok® screw. The unique spiral lobed design assist in both helping to lower installation torque and prevent back-out. When dealing with high vibration applications and applications exposed to extreme temperature changes, look to Rolok® for thread forming screw technology. Cost cutting is achieved by driving the fastener directly into the material rather than into a pre-tapped hole. Free catalog and engineering support can be found at www.semblex.com. br br For more product information, please visit: br br Company webpage: www.semblex.com br br Rolok® is a registered trademark of Semblex Corporation.