This is an OEM part sourced directly from the manufacturer. The bolt is designed for use in lawn tractors from MTD and Yard Man. 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 bolts used in the machine. Refer to the parts diagram to be sure...Read more of ordering the correct part. You may require a screwdriver or wrench when replacing this part. This item is sold individually.