Does anyone know the size in mm of the wheel center cap for 16x7 Konig feathers? I know it's a shot in the dark, but I thought I would ask. I replaced my stock 16" sport rims with 16x7 konig feathers and would like to replace the center caps with something that isn't chrome and doesn't protrude from the wheel (like the stock sport rim center caps were).

Looking around the net center caps are all measured in mm and I have long since gotten rid of the ugly konig center caps. Are center caps something that are faily universal for wheels? Would the stock sport rim center caps have fit on my konig rims? If that's the case I could just buy a stock set and either use red H decals to match my emblemds or simply paint them black

Any help will be greatly appreciated.