I asked my PA to order some bolts for me from Mcmaster Carr, I said they are in my cart, just log in and order them. She looked at the cart, texts me and asks how many I want, confused (they were in the cart) I text back saying I only needed 6 (there are 50 in the bag), she orders 6... bags. I kept one, gave one away, and now have 4 bags of bolts for the muffler. High-Strength Class 10.9 Steel Hex Head Screw, M8 x 1.25 mm Thread, 20 mm Long. They are black iron so strong but not particularly fancy. If anyone is looking for some, PM me and I will stick some in the mail until the pile dwindles down. She means well..