2003 2.7 exhaust manifold flange studs

I hear it is common to snap these three studs when removing the exhaust manifold. Well a very broke family member did it too. I'm ordering a new manifold gasket as well as the flange gasket and EGR gasket from Rock Auto. I would appreciate getting help with the stud part number or size. Are these studs M10x1.25x40mm? My plan is to remove the manifold and try to extract the broken studs.

Right now he is running with one stud holding it together.
He has his 4 and 5 year old riding with him on the weekends which has me especially worried. I'm sure the exhaust gasses leaking into the truck aren't kind to anyone.
Thanks

 

Toyota has nice studs with a Female Torx (?)on the end to help install them

Along with nice stainless lock nuts that is the correct size I am not sure about the length I would have to measure to be sure

 

https://www.lceperformance.com/Header-Stud-Set-20R-22R-22RE-2RZ-3RZ-p/1045030.htm

 

Thanks, these are the three studs connecting the exhaust manifold to the first cat pipe.
I can’t seem to find them on the Toyota parts website.

 

these are probably the same size as the three flange bolts, about the same $ for the set as four from rock auto

 

Could this be it possibly?

https://parts.toyota.com/p/Toyota_2...nner-27L-AT-2WD/BOLT/63349225/9011610149.html

 

Yes, THANK YOU!