here are pics of the NUTS used on Land Rover 3 / Range Rover 3 wheels .
only wheels from these models have the 72.5 mm hub bore .
the post 2006 nuts have a taper but the flat washer may be what secures the wheel .
pre 2006 lugs have less taper but still have the flat area .
contact the company in the link for a better answer .
Land Rover