hello Max, Bought two nuts. $1. The bottom nyloc nut fits perfectly. The top nut tightens up. It's not the right size. I checked the Pope manual diagrams and , the top nut in not mentioned........ It shows bottom nut size.. I will take mower in to try to fit another close size. My top thread is good. It came with a nut on it ,but it was tight as well..wrong nut. My base plate is not original, but it is 16mm hole so will do the job. It has Victa slot holes.... Must be a Victa. None of modern Victa ones fit. I'll just plod on. get a nut. thanks speedy
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