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So for those who care…
TL;DR - do not buy the G series wheel bolts toward the bottom of page. Use the F series bolts. The G series at the bottom is really for the X5, X7 etc.
Some additional digging, the ACER site states “G Series uses the special 2 piece bolts listed UNLESS you are using aftermarket wheels and the aftermarket wheel manufacturer designed the wheel to use the standard M14x1.25x28 bolt. Please note the flange on this G series version between the loose washer and the 17mm hex head has a 27mm diameter, which is the standard diameter for the OEM G Series bolt design which is BMW part 36136795153”
Now looking at my wheels (I have the 1000M from the dealer, new with car) and comparing the existing bolts/lugs against the ACER ones, there is a sizable difference in the washer size (dia.) because the dealer used the bolts from the F chassis, therefore it seems that (edit) I bought the wrong damn bolts.
Pictures attached for clarity
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