Front diff bolt size

I had a front diff drop installed when I had my bilstein 5100s put on and after much reading have decided to remove it. Problem is the shop that did it didn't send the original bolts back so I'm trying to find out what size I need to get. I'm assuming the new bolts being an inch longer won't have enough thread to work. Anyone know what size the oems are?

 

Not sure on the size, but these are the bolts:

https://parts.toyotaofcoolsprings.com/oem-parts/toyota-bolt-flange-90105a0188

You'll need the nuts too:

https://parts.toyotaofcoolsprings.com/oem-parts/toyota-nut-flange-90178a0047

 

Thank you very much!