This is a genuine OEM replacement part designed for use with a variety of power tools. It is made out of metal and it is sold individually. It is a standard hardware which has multiple applications based on your tool. You would need a wrench to tighten/loosen this nut.
This replacement locknut is a high quality hardware that is sourced from original equipment manufacturer for use with Dewalt table saws. A lock nut is a type of nut that resists loosening when properly threaded onto a bolt. For correct location and use of this item please make sure to check appropriate diagrams of your equipment. One durable metal locknut is included per order.