This is an OEM part sourced directly from the manufacturer. The screw is commonly found in Toro lawn mowers and lawn tractors. This is a metal part, and may be used in different locations in the machine, depending on model. Please be aware that there are different screws used in the machine. Refer to the parts diagram to be sure of or...Read moredering the correct part. You will require a wrench when replacing this part. This item is sold individually.