Bolts for Pinion Snubber?

Last year I bought a really nice pinion snubber from a member here (Longgone?) and I finally have the time to put it on.

What size bolts do I need to bolt it to my 8-3/4, 489 case if that matters? The fastener store I use moved into the next town and I'll be in that area today. So I'll swing by to get some grade 8 hardware for it. So if ya know what size bolts I need, please let me know.



Wylde1.