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.
Needed to replace the cheesy and broken e-brake handle on my 2008 Clubman S. Purchased the Cravenspeed assembly from Outmotoring. Received the purchase in a VERY timely manner and the quality of the Cravenspeed handle is top notch. Installation was easy and it felt good to toss the broken cheesy factory assembly! Thanks, Outmotoring!
Lee
Loved the trunk handle for my 2006 Mini Cooper S!
Daniel
Thank to Aaron,your aid is definitely for the last decision