I was in Lowes a couple days ago, looking for a special nut for a project. I noticed they have a relatively large selection of pins, grommets, anchors, nuts, bolts, fasteners, etc. I probably spent 15 minutes browsing through all the drawers to see all the specialty hardware they carried, making a mental note for future reference. I found several odd items that were exactly what I needed on past projects, but I had no idea where to begin looking for them. It's not the first place I would go for tractor repairs, but if you have a Lowes nearby it might be worth a try before driving too far to find an odd piece of hardware for that special project.