papakb
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The general trend today is to go away from lock washers when assembling mechanicals. Between KEP nuts, Aviation nuts, and Thread Locking compounds they've been replaced as janother unnecessary cost reduction. Most engineers will tell you that lock washers shouldn't be reused although most people do tend to reuse them all the time. After their first use the sharp tangs that actually provide the locking action fold away and become less helpful with each reuse. Stick with Loctite Blue (medium strength) unless you never want it to come apart again and then Red Loctite (high strength) is the way to go. I often use Green Loctite on fasteners because of it's wicking action where it can be applied to already assembled fasteners.
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