This is an original replacement part sourced directly from the manufacturer. The screw is commonly found in snowthrowers and lawn tractors from Toro, and in an engine from Husqvarna. This part is made of metal, and may be found in various locations in the machine, depending on model. Please be aware that there are different screws used...Read more in the machine. Refer to the parts diagram to be sure of ordering the correct part. You will require a wrench when replacing this item. The screw is sold as an individual replacement part.