A thread cutting screw with machined screw thread pitch, blunt point, tapered entering threads and multiple cutting edges.
Steel thread-cutters are used in heavy gauge sheet metal, aluminum, zinc and lead die castings, cast iron, brass and plastic.
When using any thread-cutting screw, the material in which the threads are cut should have a lower hardness by at least 10 to 20 Rockwell hardness points.
Made from zinc plated AISI 1016-1024 steel or equivalent.