The mating screw is designed to be a special fastener that mates into another component, such as a nut with threads or an internally threaded shaft. Its principal purpose is to provide an extremely close and secure relationship between the two parts. These screws have precise engineering, which makes them ideal for applications that call for high tensile strength and reliable fastening. https://www.dalloyedbolts.com/mating-screw-manufacturers-suppliers-stockists-exporters.html