Any ideas, comments, or suggestions anyone would wish to share in this matter would be greatly appreciated. Neither has offered a set of pros and cons we are anxious to accept. Captive lockwashers and serrated flanges have been looked at so far. Now that I am more aware of time involvement in the production process, I am amazed at the substantial amount of time our assemblers spend fumbling with the thousands of lockwashers we go through every month. Now my circle has brought me back to a very similar cast iron and steel situation. And it seemed they had many years of success in this procedure to support their claim. At that time it was explained to me that lockwasers were used under a (NC) nut or a screw head when they pulled up against steel but a lockwasher wasn't necessary when the mating surface was cast iron. About the same time Ed introduced us to the Beetles I was working as assembly labor in a shop whose propriatary line was mfgd mostly from cast iron and structural steel.
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