I know this has been discussed before, but I just wanted to clarify some points....
I've removed the large arches from when the car had 13" wheels, and I'm going to fit the Mini Special arches.
I'm going to use M4 rivnuts as recommended by several people, but what material rivnut would you guys recommend? Steel, Stainless Steel or Aluminium? Flat head or Countersunk?
Is there a preferred fitting technique? I was going to mark out and drill the holes, then paint the bare metal. When the paint is dry, I was going to put a grease or sealant on the rivnut before it is fitted to try and keep out the moisture!
Thanks for your help!