fuchs 5x205 empi replica bolts and nuts

[karmann17]

Hello,
I just bought a set of empi fuchs réplica in 5x205 and I have a problem to find the corect bolts and nuts for my 64 ghia (disk in front with M12 nuts and drums in back with M12 bolts)
My problem is that empi recommend 60° conical and I it's a sphérique shape...
Does somebody already used this wheels and what kind of material you used to instaled it?

[DerrickfromNC1]

Factory 12mm acorn nuts should work if they are long enough.

[karmann17]

That's probably the problem, it must be too short the hole is deep.

[DerrickfromNC1]

These are longer
https://www.mooreparts.com/chrome-12mm-stock-style-lug-bolt-20mm-length-threads-10-pack/