Eccentric Nut Part Number ?

Bought these to replace the lower eccentrics on my friends 5-lug, his all seized, so we are cutting them out tomorrow... Anyway I thought they would come with the nuts, but should have known better, the stealership always wants more money. So now I cant find the part number or the thread size for this nut and I need it ASAP. Plan to go to the Toyota dealership tomorrow, but I am not sure if it is something that they stock. Also hoping the old ones he has just come off and we can reuse them, but would like a backup plan.

Other plan would be to use some nuts from the hardware store, if I could find the thread size which seems to be a M16x?. This would only be so that we could put the truck back on the ground rather than leaving it on jack stands, NOT to actually drive it, since the nuts would likely be grade 5 or less. Again, dont plan to drive it unless we get actual Toyota grade 8 or better nuts on there, just dont like leaving cars on jack stands for long periods of time, if it comes to it.

 

I found the part number and ordered the nuts from Toyota. I was also able to get the old nuts off. For anyone looking for the part number here it is - 90178-A0013