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.
Although I am not ordering any parts on this visit just yet, I wanted to thank you guys for such an honest and awesome company. My best friend just ordered her NM Exhaust from you today, and she had nothing but praises for your customer service and product availability. You are definitely going to be our number one source for parts.
Lance
Surfboard rack is good thing, that makes surfboard safe. And the free shipment is good initiative.
Love shopping here! Amazing products, customer service is prompt, easy fast shipping... I really can't say enough! Thanks so much. I will be a life-long customer and always recommend!