The lock connector is made from either 35CrMo or 42Cr material, undergoes rough machining followed by quenching and tempering heat treatment, and finally receives a surface nitriding process after precision finishing. This comprehensive treatment effectively eliminates risks such as galling, thread breakage, and outer-diameter cracking, resulting in enhanced wear resistance and easier disassembly. All components are manufactured using advanced, precision imported CNC lathes equipped with custom-molded cutting tools specifically designed for threading operations. This ensures not only precise thread pitch but also guarantees consistent precision and interchangeability across all connectors. We can produce drill rod connectors with a wide variety of thread types, and we’re also happy to customize products based on customer specifications or provided samples.