Carriage bolts are flat-tipped with round heads, and their function in small engine appliances is to fasten together components and to secure that connection with a nut. There are various reasons that a carriage bolt might have to be removed and replaced, among them misplacement of the small, easily lost part. Other reasons to replace a carriage bolt could include damage or erosion that prevents the bolt from attaching the materials to one another effectively. If a carriage bolt is subject to this kind of damage, it should be replaced before using the small engine appliance. Remember to always wear gloves when handling, repairing, and operating outdoor equipment. This genuine MTD carriage bolt can be used as a replacement part for several different kinds of appliances that require small engines, including lawnmowers, snowblowers, wood-chippers, tillers, string trimmers, leaf blowers, and edgers. The OEM carriage bolt is compatible with the following brands: Craftsman, Toro, Cub Cadet, Ryobi, Troy-Bilt, Murray, Yard Machines, MTD, Huskee, Montgomery Wards, Bolens, Yard-Man, Turf King, and MasterCut. This part is sold individually.