All Prop Nuts Come With A "Torque Bar" For Tightening
1/2" Dia. ? 4x.7mm ? C-Style Prop NutMeasure across the center diameter of your Prop to find the Prop Nut size for you! Also Available in other Threads. Use our "Adapter Finder" to find the "Thread Size" and "Pitch" that is right for your motor.