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.
I dropped by OutMotoring with my wife today to check it out after giving her a 2015 Mini Paceman last week. Aaron and Meghan took a lot of interest in us as new customers. We were invited to come back to the warehouse and invited to view all the available Mini parts and items. We selected some accessories and were very pleased with the selection and quality of the items we purchased. If you get a chance to drop by, you'll find friendly, knowledgeable and helpful folks there! I plan to return in the future for Mini parts and accessories.
Dale Stewart
Purchased the following for my F54 JCW:
Blackout light covers
Blackout grill frame
Blackout door handles
Blackout barn door handles
ABSOLUTELY...
Perfect fit
Perfect look
Perfect durability
Transformed the F54 JCW into something even more special.
SUPERB help from the Outmotoring Staff! So YES - I'm back for more!
KA Dawkins
Great experience with Out Motoring. Great products, fast shipping and excellent customer service. Aaron has answered all of my questions and leveraged his experience and product knowledge to help me. Thanks!