Electronics > Projects, Designs, and Technical Stuff

Serial port lock nuts always coming loose

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coppercone2:
is the dsub connector correct for repeated connection cycles is the more interesting question.

cs.dk:

--- Quote from: magic on October 16, 2019, 05:39:35 pm ---One thing which will never be retracted for screw locking because it works:

a pair of nuts locked against each other :)

--- End quote ---

Nord-Lock does not agree. See this vibration test; The clamping force goes down pretty quick.

coppercone2:
nord lock washers on a computer part will make someone have a heart attack

Fred27:
Nord-Lock does look impressive, but I wonder how the other mechanisms would have worked without lubricating the bolt first.

tautech:

--- Quote from: Fred27 on October 17, 2019, 07:42:45 am ---Nord-Lock does look impressive, but I wonder how the other mechanisms would have worked without lubricating the bolt first.

--- End quote ---
Wouldn't be a fair test without lube because lube makes the torque setting accurately repeatable.

Further, these types of lubes/anti-seize are commonly used in industry in permanent exterior installations.

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