Swap bolts

Hello, say hello So according to TÜV my wheel bolts (or actually they are standing bolts or?) are too short. The wheel nuts go up only 5 turns instead of the required 7. So replace standing bolts, so far no problem, 1 I could hit out on the car (could the others get out like that). But have a bad feeling in the built-in condition to knock around so I wanted to remove the recording in which the bolts are stuck. So the splint out and now I get the mother nic Ht solved (marked on the picture, btw. What is this mother’s name? Is this the wheel hub nut?) I have something stuck on the existing bolts so that the recording does not turn further while I solve the mother however a great effort would be necessary. And therefore I don’t want to tear anything off or anything like that, I thought to ask you how to solve the mother correctly or whether more violence would be the solution. Bzw. How does it look to make it tight again? Greetings and thanks in advance