How to make a proper thread Mates in Solidworks

I've been struggling with aligning threads in my assembly for a while now.
They look aligned but the moment I start rotating the screw/rod the alignment is gone. The assembly and all needed files are attached. Please help.

Accepted answer

Hello Abdullah,

The problem here has an easy solution: select other geometry instead of the two axis.
The preferred geometry for selection in this type of mate is to select two cylindrical faces, of the opposite parts/bodies.
Please find attached my fix.

Cheers,
Elian


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