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Posts Tagged: prevailing torque nut

Prevailing torque nut

What is a prevailing torque nut? A prevailing torque nut looks like an ordinary nut that has been squashed slightly so the threads are in an oval shaped pattern. The prevailing torque nut nut will start on the bolt or shaft threads easily until it reaches the deformed threads. As you continue to apply torque to the nut, you gradually form the oval threads into a circle to match the bolt or shaft. The deformation force is what prevents the nut from loosening. A prevailing torque nut is a one-time … Read More

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