AC VACUUM SWITCH 2571501 AND 2096084 QUESTIONS

Ok so I think I figured this out somewhat. As I mentioned I dont need the ac aspect of it, but unfortunately it all comes as 1 switch with 2 components. So I had bought an NOS 3502126, physically the layout compared to 2571501 was the same. I couldnt find an original with the same layout as 2096084.
I used/compared schematics and here is a pic of what I did. Do so at your own risk.
Another question...my NOS 3502126...the mount holes in the plastic arent threaded?? Are the screws supposed to make threads when mounting for 1st time? Kinda like self tapping. Any NOS ones I've searched appear to be unthreaded.
Thanks
Steve

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