The Ni Lock Nut (Nylock Nut) is a Silver, 5/16x18, individually sold metal nut. It can be adjusted and replaced using a wrench or socket and torque wrench to the manufacturer specfications, and is used to secure the sheer pin in place on the augur. These nuts are a one time use part due to their locking mechanism. You'll know the nut has...Read more broken because the augur will not spin, and this is when the part should be replaced.
Customers found this to be an easy repair.
It is a genuine item that is supplied directly from the original equipment manufacturer for use with Toro lawn and garden equipment. This washer is a standard hardware which has multiple applications depending on the model of your unit, please refer to the appropriate diagrams of your model for the correct location and use of this part. It is made of high-quality metal and is sold individually.