The Nut-Flange, Ni, simply known as a Flange Nut, is a silver metal individually sold part which can be applied with a wrench or socket and torque wrench. Simply torque the part to the manufacturer specifications. It is used to secure the idler arm assembly to the frame, and will need to be replaced if damaged. You can tell if it is brok...Read moreen if there are signs of visible damage, or the part won't tighten all the way due to damaged threads.
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This is an authentic replacement part manufactured for use with Toro snowthrowers. The special hex head screw is used with a variety of different snowthrower models and has multiple applications. This screw is available as an individual replacement part, please see model diagram for associative parts.