So that was you who IM'd me! Um, you could probably just go to any auto parts store and buy the "auto grade" hardware you need. I've been doing this for years and the current nuts/bolts holding my turbo setup together were bought there. No problems yet.I need a 10.9 ISO grade bolt to go on my sway bar. Who the F would sell that, along with 4 matching nuts.
EDIT: Sorry I wasn't more helpful - I always get a little confused when someone IM's me and I have no idea who they are.