I have a 2005 e53 but bought the following spacers by mistake:

20mm BMW Wheel Spacers 5x120 74mm Pair 74 1mm Hubcentric E70 x5 14x1 25 Bolts | eBay

The wheel shop said the spacers fit the wheel hub using the bolts provided w/ the spacers, but the OEM lug bolts do not fit the spacer threads themselves. Is the fix as easy as just buying e70 lugs to bolt wheels to the spacers? Why is it that the spacers bolt on w/ no problem?

New to BMWs here.