This OEM Top Locknut measures 5/16x18, is made of metal, and it isused to secure parts in place and prevent backing out from vibration. Replacing this part varies in difficulty depending on the part it is securing and the equipment in question, but it is generally an easy job according to our customers. Installation requires a wrench or socket.
This part is an OEM from the MTD manufacturer. The metal bell washer (.45 x 1.0 x .062) is compatible with many tillers and lawn mower machines. This item distributes even pressure over the surface and provides a solid grip. Please be sure to refer to the specific manual for repair instruction. This part is sold individually. A screwdriver and a wrench are often needed to make the proper removal and replacement.