This nut, or slotted nut, is a genuine MTD part. It is a replacement part for use on lawn mowers, log splitters, wood chippers, lawn tractors, and chipper shredders. It is hexagonal in shape.The uses for this nut vary greatly depending on the machine with which owners plan to use it. Generally speaking, nuts work to secure various parts of components together. Loosening and tightening most nuts can be accomplished with a wrench. Before making any repairs, be sure that the engine has completely cooled, empty the fuel tank to avoid spillage, and disconnect the spark plug or battery. Wear work gloves and other protective gear.This nut is a genuine OEM part sourced directly from the manufacturer. It is sold individually; very often, more than one nut is used on machines such as these, so be sure to check how many are needed. It is designed for compatibility with various machines made by Agway Craftsman, Cub Cadet, Duerr, MTD, Lawn Chief, OEM, Ranch King, Remington, Ryobi, White Outdoor, Yard Machines, and Yard-Man.