Need help with window regulator part # 300CD
 

I need help with a part # for my '85 300CD window regulator. I am missing the screw & rubber nut combo that attaches the window regulator to the inside car door. The regulator mounts at 3 points with these combos, I am missing 1. The pictures are attached, in the 3rd pic are the missing pieces I actually require. EPCnet doesn't work for me. On a foreign site, there list a repair fastener kit Part # 1237200114. Is that what I need? Thanks.

Also between which parts in picture 2 does the inner car door sandwiched between? Thanks.

My old 124 250D has suffered similar failures, I have used a ~25mm long M6x1 stud with 2 nuts & 1 washer to form a spacer of similar thickness to the rubber, this does the trick and makes very little difference to the motor noise when the winder is operated.
I believe ANSI metric will intermate with the ISO metric original threads.