Hiko wrote on 11/29/20 at 19:26:07:Zepp wrote on 11/29/20 at 09:12:08:In any case, there are a lot of bolts and nuts!
I dont know about nuts that are 12.9.. my 1,5 years at universety says that its the nut that should get broken befor the bolt!
Its probably some sort of enginering kind of best solution, in moste case?
And for god sake, dont even ask my about the values and how to understand them, it was 20 years ago I was study and Im now going to be retired sooon!
I have been retired for a long time now and spent all my working life in the engineering game I have seen a lot of broken bolts but cant recall seeing a broken nut I had a university type ask me to test some bolts and nuts to destruction for him one time
He wanted to know at what point the threads would strip.
He was most surprised when the bolts snapped every time which in my experience is usually the case with properly sized bolts and nuts.
Applied mecanics was not my best subject.
In any case I was not studying to be a full enginer, but have to read about basics, and the words that i got is that ordany nuts are small and have not that many treads, they supose to go befor the bolt it self.
In other cases, like bolts that conect the head to the block, preferely on car engines, there are full lenght treads, and one often have to replace those bolts everytime becuse one often have strengthen the bolt alredy.. to some limits.
In anyway, I got my degree!