Does anyone have know the size of the mounting studs on the 67 SS hood louvers? I ordered speed nuts from Classic and I thought I had the right ones. They are way too big. I can't find anything but Emblem speed nuts in their catalog and I thought these are what I ordered. They come in 1/8th, 3/16th, and 5/16th. I'm at work and have to get the part number to know what I ordered for sure.