VLR11 20" wheels: does anyone know what size locking wheel nuts to buy?

[Binned_it]

Hi,

I bought some 20" Velare VLR11s, which I love. Staggered fitment on STX. They came with spigots and wheel nuts, but no locking nuts.

They are different to the standard ones for the 16" Clayton's

Does anyone happen to know what size locking nuts to order, and/or recommend a particular brand?

Or tell me what to measure?

Many thanks!

Dan