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  #1  
Old 05-06-2020, 03:21 AM
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Default spring washers - good 'nuff??

https://engineerdog.com/2015/01/11/1...7_4DPYYBGzJUQM

good read and food for thought ??
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Old 05-06-2020, 08:38 AM
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Respectfully, I'm gonna have to see the actual process of a bolt and nut loosening before I quit using lock washers.
Maybe I'm just hard headed that way
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Old 05-06-2020, 11:42 AM
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This video shows the lock washer to be only slightly better than with no washer. https://youtu.be/IKwWu2w1gGk

Logically, since tension (non-permanent stretch) in the bolt is what keeps it tight, it's not that much of a reach to imagine how the spring washer really does little in keeping the tension in the bolt.

Regardless of the fastening method you use, the article and video really give a case for occasionally checking the tightness of all your bolts. I do that on mine.
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Old 05-06-2020, 12:07 PM
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So now what do I do with this half-gallon of lock washers I scored at that estate sale?
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Old 05-06-2020, 12:37 PM
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Quote:
Originally Posted by Skip View Post
So now what do I do with this half-gallon of lock washers I scored at that estate sale?


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Old 05-06-2020, 03:52 PM
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Thanks for the video.
A friend of mine used to say that cross threading was the best loctite on the market
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Old 05-06-2020, 05:35 PM
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Quote:
Originally Posted by Old Iron View Post
Thanks for the video.
A friend of mine used to say that cross threading was the best loctite on the market
I found scientific research too, and read through it. It agrees. A flat washer or spring washer don't do a whole lot. A nylock or serrated washer or nut are a little better. A Nylock mostly saves you from losing the nut but that's its main benefit. Wiring or using a castle nut is the most secure, but still requires periodic checking.
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Old 05-06-2020, 06:04 PM
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There's also a nut called a Stover that works real good

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Old 05-06-2020, 10:54 PM
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This held my C-130 together in the 60's
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Old 05-07-2020, 12:45 AM
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Quote:
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This held my C-130 together in the 60's
I used lots of airplane parts for different sculptures and everything was wired up like that. A work of art on its own!
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