Material: made of high quality carbon steel material, nickel-plated surface, with high hardness, corrosion resistance, abrasion resistance, durability and excellent performance.
Easy to install: Easy and quick to install, the fastening screws are already installed on the locking ring, there is no need to install them by yourself, it is very convenient to use.
Applications: Widely used in gear box assembly, motor base, transmission shaft, machine tools, agricultural tools, paper mills, hobby craft, etc.