Threads on hoses? - Cant figure this out

Thank you guys .. Alot!!
It felt like mission impossible makes sense now and I know whats what.

I will be ordering two of these for the front
Summit Racing® Stainless Steel Braided Brake Line Assemblies SUM-220302

And one each of these for the rear
Earl's Performance Brake Adapters 501902ERL
Summit Racing® Stainless Steel Braided Brake Line Assemblies SUM-220303

The thing is we dont really have part stores like you guys do. Or local ..anything haha. For example you cant drop by your local exhaust shop, dont think they exist and the local alignment is hours away in the populated south of Sweden lol.