Flange nut size?

Fellas,
Anyone able to tell me the size of the flange nuts holding the fan clutch to the water pump? '96 2.7L 3RZ.

I rounded one off. Was able to get it off with a small pair of vice grips and do the needed work. Put it back on the same way. Called local dealership to get the part number and what they gave me is the wrong size. Am sure I can pick it up locally but was hoping to short cut and not have to take one with me. Is a size 12mm for wrench.

Also, where the heck can you get parts diagrams on toyota sites now?

I used to be able to see these on the dealership sites but they seem to have pulled them down. It's marco polo trying to find parts now. I can only assume it's them not wanting to keep them up with part number changes. I've been cross referencing using parts geek etc. but good luck finding "Fan clutch flange nut".

Thanks in advance for any help, did search a while on this before asking.

 

A 12mm nut for JIS should be an M8. It is probably an M8-1.25 though the thread pitch could be something else. I don't think I've seen an M8 that wasn't 1.25 on my truck.

 

Enter your vin# at https://partsouq.com/

 

Thanks fellas.