thusband Yes, with the nut being brass and the spindle being steel I think, it’s bound to cause slight damage if overtightened and then the threads don’t engage as freely, which would start the process of wear…one in which lubrication will only delay the inevitable. It should be the lightest closure, as you have yours set.
Obviously there are potential moves to revise the whole part, I have suggested some things and this evening I asked for some nuts to be sent to me. If they do, then perhaps we can help a few of our forum members out if they have a problem. I will probably only get about 6 or 7 if I’m lucky, but having looked at the high prices on line…I thought it was worth asking. I expect as it’s not a Lelit made part, they don’t get it so cheaply.
Then hopefully if a member has a fail, for the price of an SAE they can get a replacement.