Trouble with thread

Hello,

I am currently designing a machine but when I went from the 3d view to the assembly drawing I stumbled upon some problems. I get some weird threads on places where there should be no thread visible at all. All the treads are visble through my parts, it is very annoying and I'm quite mad about it. Could someone help me? I included a picture of the problem. Thanks!

SolidworksDrawings And Detailing