Posted by William (184.108.40.206) on November 16, 2002 at 01:10:00:
In Reply to: Screw, lock, washer stackup ? posted by Chris on November 12, 2002 at 08:34:04:
: When installing hardware to hold an assembly together (screw lock flat), does it make a difference what side the lock and flat washer go on? (The nut side or the screw side.) The train of thought where I work is that the lock washer should go on the nut side so that it prevents the nut from turning off during vibration. I personally think that it doesn't matter; it's more of a personal preference thing and a profile thing. Profile meaning, if you want the screw head to sit lower. Any info is appreciated.
It has always been my belief that the lockwasher is to be fitted under the nut, in a nut and bolt configuration. Conversly under the head of the screw in a tapped hole configuration (of course). I cannot find any literature on it and I am stymied to say that it could not be the other way around. The concept just sounds (or looks) odd to me. Maybe a fastener manufacture has an opinion or answer.
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