This is a genuine manufacturer sourced replacement part used on Delta and Black and Decker equipment. It helps to distribute the pressure evenly and provide a tight seal between connected components. This is a standard hardware which may have multiple applications. For the exact location please refer to the diagrams of your specific model. This part is made of high-quality metal and is sold individually.
This is an original Delta replacement part manufactured for use with drill presses and table saws. The special hex nut has multiple applications depending on the model drill press or table saw. This hex nut is sold as an individual replacement part, please see model diagram for part location and usage.