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Old 02-12-2018, 12:14 PM   #6
Jim Brierley
Senior Member
Join Date: Jun 2010
Location: Temecula, CA
Posts: 2,605
Default Re: Why no lock-washers?

For one thing, lock washers will provide a place to leak, water or oil. Another thing is that lock washers will deteriorate from heat, perhaps break and the nut will no longer be tight. If a nut is tight, it will not back off by itself.
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