Hex nuts are a common type of nut used with bolts, anchors, studs, and screws. These nuts are often present in lawn and garden equipment like lawnmowers. A hex nut has a hexagonal shape with machine screw threads and can be used with lock washers. Hex nuts are made of durable metal but can become damaged, corroded, or even break over time.Visually inspecting the hex nuts on lawn equipment will provide information about whether it's damaged or broken. This might be seen as a dent, a misshapen nut, or a nut that has broken in half. If these things are present, the hex nut will need to be replaced. Remove the hex nut using a socket wrench and socket and then place a new one on the machine. Once it has been situated, tighten the nut so it holds the other parts stable before using the machine.This hex nut is a genuine OEM replacement part sourced directly from the manufacturer. It comes as an individual component. The part can be used in lawnmowers, log splitters, snowblowers, tillers, and string trimmers made by Craftsman, Toro, Cub Cadet, Troy-Bilt, Murray, Yard Machines, MTD, Huskee, Montgomery Wards, Bolens, Yard-Man, and MasterCut.