A chuck nut consists of internal threading along with groves circling the circumference of the nut. As the name suggests it comprises of a chuck and nut in the structure. Chuck nut is used for fitting, to hold different parts together, etc, and provides a very firm grip.  It is used because of the solid grip it provides. It helps in the precise fitting of different parts as it has a great ability to cling parts together. Chuck Nuts are the particular types of nuts that have their specific uses in the industry. Depending upon the type of steel used, there are two types of chuck nuts which include Mild Steel Chuck Nuts and Alloy Steel Chuck Nuts.