Replacing a damaged or dull scraper bar ensures optimal clearing performance by scraping as close to the ground as possible, directing snow into the auger housing. For added convenience, the RYOBI 21” Snow Blower Replacement Scraper Bar includes all necessary installation hardware. The 21” Snow Blower Replacement Scraper Bar is compatible with RYOBI 40V Single-Stage 21” Snow Blowers RY408101/RY408010 & RY40862/RY40806 and includes (1) scraper bar and (7) torque screws.