P slot bolt size

Need to get new bolts for my wheels, what is the correct type

Done a search and couldnt find anything 

Cheers

You'll need tapered bolts as they are for alloys.

They'll be M12 x 1.5mm threads and assuming you're not running spacers measure the length of your existing bolts.

Then either ebay or

https://www.mistertee.co.uk/contact/

Ian