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Distorted thread locknut
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<p>A distorted thread locknut, is a type of <a href="/facts/Locknut/WJL0tRKM">locknut</a> that uses a deformed section of <a href="/facts/Screw_thread/dqGzDfHv">thread</a> to keep the <a href="/facts/Nut_(hardware)/RvmcvYH8">nut</a> from loosening due to vibrations, or rotation of the clamped item. There are four types: elliptical offset nuts, centerlock nuts, toplock nuts and partially depitched (Philidas) nuts. </p>