Harrison Silverdale Ltd Unit 1 Traso Business Park. Callywhite Lane. Dronfield, Sheffield, S18 2XR Tel: 01246 296 930 • Fax: 01246 296 940 Email: [email protected] Internet: http:/fwww.harrisonsilverdale.co.uk Heat / Ultrasonic Inserts Part No. The IS Insonic Range of Inserts are designed to provide strong reusable thread forms in Thermoplastic materials. The unique opposing helix knurl provides exceptional resistance to torque loads and facilitates the flow of plastic into the two recessed grooves providing greater pullout loads than alternative designs.Materials and Finishes:Brass Self Colour (nickel plated on request)303 Stainless Steel (code S) special order only check with sales dept.To Specify Use: Series No / Part No (eg 20106 IS030H058)