By the way, McMaster carries these. .
Do you have any more information or URLs for FujiLok? Google didn't help because I didn't know enough to pull this out of the irrelevant hits.
Joe Gwinn
In their defense, they prove Key-Lock's vibration resistance with a Junker test, which is the gold standard. And NASA will accept no less.
Joe Gwinn
I think I found them. The company is "Fuji Seimitsu Manufacturing Co Ltd ".
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The locknut is basically the same as the Security Locknut steel insert. There is a US patent that I have not yet found, so there must be some difference.
Joe Gwinn
Not so fast. I did find an earlier Chinese patent from FujiLok that had a diagram that resembled the Security Locknut, but that is not what's currently offered:
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Somewhere in the middle of the sales talk there is a section that shows how it's built and works. But no Junker test data.
Joe Gwinn
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