thanks jeff. i googled those part numbers and found a set from a german website for $20 with shipping
for some reason i could't find the tech doc for shimano's pedals on their website, but i found it by looking for that part number
best source for the parts was in germany, btw: https://bicikli.de
there was another in the uk and then ebay japan
Use the part numbers Jeff M provided and try going through a shop.
i would (wrongly?) feel worse asking a shop to track these tiny pieces down through shimano canada vs. just sourcing them myself. i'm trying to stay away from buying stuff online vs. getting it through shops these days, but in this case it seems better
"Nobody really gives a shit that you don't like the thing that you have no firsthand experience with." Dave