This is a genuine DeWALT replacement part. The nut is designed by the manufacturer for use in table saws. This part is made of metal, and is generally used to secure the shaft of the rail lock lever to the table assembly. Please be aware that there are different nuts used in the machine. Refer to the parts diagram to be sure of orderi...Read moreng the correct part. You will require a wrench when replacing this item. This product is sold individually.