I tried this repair yesterday, and as I was removing the fasteners, two of the nuts that are welded to the frame broke off. I’m wondering what would be the best option for replacing them. Can I just get a comparable set of nuts & bolts from the hardware store and screw them down? Should I throw in a set of washers/lock washers too? Or did I blow it and do I need to take it in to get new nuts welded on?