This Ni Nut-Lock, or Nylock Nut, is a Silver 1/4 x 20 metal nut. Sold individually, it can be adjusted using a wrench or socket and torque wrench to the manufacturer specfications, and is used to secure the sheer pin in place, on the impeller assembly. These nuts are a one-time use part due to their locking mechanism. You'll know the nut...Read more has broken when it appears to have damaged threads or rounded off edges.
Customers found this to be an easy repair.
It is an authentic manufacturer-sourced component which is specially designed for use with Toro snowblowers. This replacement flat washer has multiple applications, please make sure to check the appropriate diagrams of your model for the correct location and use of this hardware. It is a high-quality part is made of durable metal and is sold individually.