This is an original replacement part sourced directly from the manufacturer. The bolt is commonly found in snow blades, dozer blades, and lawn tractors from Craftsman. 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....Read more Refer to the parts diagram to be sure of ordering the correct part. You will require a wrench when replacing this item. The bolt is sold as an individual replacement part.