Torque converter bolts?..

There are two transmission parts distributors in Portland Oregon. Portland Transmission Warehouse, and Transtar. Both of these outfits SHOULD have the thin head NON hemi converter to flex plate bolts, as they both sell converters. I don't know if you actually have a converter rebuilding facility in Portland, but if there is, they'll have the bolts. I'd be very surprised if these bolts were non obtainable in your area.