This part is sold individually. This nut can be found in various appliances including a dishwasher, air conditioner, washer, dryer, range/cooktop, oven, freezer, range hood, and refrigerator. There is a serrated pattern along the edge of the nut, which helps to avoid loosening while the appliance is in motion. Nuts may corrode or rust ove...Read morer time and will need to be replaced. You will need a wrench to screw the nut into place. This genuine OEM part comes directly from the manufacturer.