Thanks Berkshire,
My quest is not so much to find an alternative (and I have used the clevelock type nut in steel applications with good results) but to evaluate the Aerotight nut specifically. We use SS fasteners in our process and have to insure that they are securely locked in place to prevent downstream equipment damage.
I was hoping to get a clear picture from anyone who had used Aerotight as to whether the 'sharp edge' you mention does or does not enhance a SS fastener's propensity to gall in the best of conditions.
My eyeball, calibrated by experience (maybe I should say jaundiced), sees a problem waiting for a place to happen with the locking device being a place to start the sequence that produces the galling, but true world experience might state otherwise and if so, I was hoping to find that out.
rmw