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lock washer

American  

noun

  1. a washer placed under a nut on a bolt or screw, so made as to prevent the nut from shaking loose.


Example Sentences

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On every bolt use a castellated nut and a cotter pin, or an ordinary nut and a lock washer, so the bolt will not work loose.

From Aviation Engines Design?Construction?Operation and Repair by Victor Wilfred Pag?

"I'll put a lock washer on it this time."

From Empire by Clifford D. Simak

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