Wheel studs - 47mm needed

I have the stock team dynamics wheels from GBS.
I realised early on the standard 30mm wheel studs would be too short and before delivery of the kit bought the max 63mm studs from Mtec/Ebay.

Checked the wheels on discs & hubs today:
    30mm studs would give about 5 turns on the wheel nuts - not enough.
    63mm studs a going to foul the closed end wheel nuts

Turns out I need 47mm studs - subsequently ordered from Mtec racing.