Quoted from Freeplay40:Honestly, I don't think I've ever seen a rivet fail on a pinball machine and have seen both brass and steel used...Ex...High Speed was done with steel rivets while Swords of Fury was done with plated brass rivets. One thing for sure is that brass rivets are easier to remove than steel rivets!
I've never seen one fail but the main problem for me is when a plastic gets broken and you have to transfer a part to the new one. The tool costs $200 bucks and I have maybe 6 rivets total to change. Not worth it to me to buy a tool that expensive.