Tried explaining to my 4 year old the purpose of the lockwasher and she asked how it worked? I came to the realization I didn’t know. Help my educate my child by educating me please!
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It doesn’t.
NASA Fastener Design Manual RP-1228:
“The lockwasher serves as a spring while the bolt is being tightened. However, the washer is normally flat by the time the bolt is fully torqued. At this time it is equivalent to a solid flat washer, and its locking ability is nonexistent. In summary, a lockwasher of this type is useless for locking.”
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