do you know what i am talking about? the lock nuts that look like a plain hex nut with no special protrusions at either end. but on 3 of the flats there is a rectangle indention where the nut has been crimped and distorted just like the stover bolts but the bolt will spin for about 1.5 turns from either end and the distorted thread is in the middle of the nut so that if the end of the bolt is flush it is 2 or 3 turns past the middle of the nuts locking feature.