Geniune Aircraft Hardware (888) 247-2738 still has one 1/4 lb pack available (smallest they sell) for ~ $21.00 + S & H. I just got off the phone with them ...
Better than a pound, but not as good as 1/8 lb, oh well.
I know nomenclature may have changed if that is same as a NAS 1097 AD 4-4, oops rivet, I have a bunch from probably 2007. Looks like 1/4#- free, just postage to where you are PM me if you need them.
