2012 Performance plus package wheel nut for the 17" wheels.

Help,
Need a source for the wheel nuts that come with the 17" wheels as part of my cars Performance Plus package option. My dealer doesn't have a clue and even after showing him my car says they're aftermarket and Toyota doesn't show any parts like this. Tells me according to my VIN it takes stock lug nuts. End of story for dealer help.
I lost one lug nut somehow, somewhere and need to replace it. Thanks in advance for your help.

 

Thanks for the reply Mendal.
The lugs for the 17" Forged Toyota (TRD) Performance Plus wheel are about 1/4 inch longer, taller", than the stock Prius wheel nuts due to the depth of the forged wheel facing. I have at this time located a used replacement from a local tire dealer's odds and ends left over from their selling of new wheels. You have to look really close to see any difference. I won't be looking that close.

 

Thanks, I'll check my local tire store. They sell wheels and may have something close enough in their take-offs bucket.