Keyserts provide an easy to install thread assembly to replace damaged, stripped or worn threads in a wide range of materials including castings, forgings and mechanical components (except cast iron or sintered materials). Made from tough high quality carbon steel or stainless steel, Keyserts are especially suitable for use in heavy wear and high vibration situations such as mining and earth moving equipment. Keyserts are available in lightweight, heavy duty, extra heavy duty and solid types in metric and imperial thread forms. Each Keysert features either three or four locking keys providing a positive mechanical lock and preventing rotation and torsion. Whatever the project, Keyserts are renowned for reliability under the toughest conditions.