Yep, no doubt shear is important.
While doing additional research, I found this OEM pack of shear clevis pins:
Obviously, this craftsman machine was sourced by Electrolux, through the Poulan brand stream.
This post was more of a fishing expedition to see if anyone had found a bulk source of shear bolts (or shear clevis pins).
I bought 3 of those 4-packs of pins, and 2 10-packs of shear bolts for the snowblower. Looks like "bulk" will be hard to source.