Hello again! Here I am, asking for help once more... Any ideas as to what the first object might be? (I suspect it’s an impact fuze, but for what or which type?) And the second one is another mine fuze, but... which model?

Neither of the two pieces has any visible markings; the second fuze has an M10x1 thread.
As always, thank you very much!!

Neither of the two pieces has any visible markings; the second fuze has an M10x1 thread.
As always, thank you very much!!