Those are called rivets which are extremely durable and strong when installed correctly using a rivet gun, however, standard stainless bolts and nuts sourced from a local hardware store will work just as well.
Replacing the puddle lights on my 2010 R56 with Ringed Mini Wings has been the highlight of my You-ification. There are ridiculously fun to see, as well as being very bright and easy to install. Every Mini should have these!
Edward Wickham
I have ordered many items from Outmotoring in the past (I live in London) and the service they have given me has always been first class. If you have an issue with regard to an item or order, all you have to do is email them and they will always try to help you out and resolve the problem. I would recommend them for any of your Mini accessories. Eddie
Eddie Michael
I ordered a part that I did not end up needed - They took the return and were very responsive to all my requests - Great company