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Use carbon steel in case you break one you can still drill it out. SS is a lot harder to drill if broken.I am doing the valve cover gasket this weekend. Local dealership is out of bolts. I have dozens of M6-1.00 25mm in stainless and 10.9. Any issue with using either one since the torque value is so low?
What happened to your old bolts?
Use carbon steel in case you break one you can still drill it out. SS is a lot harder to drill if broken.
No, it's not worse. But you MUST use cobalt bits and go really slow. Plus if you slip you're on aluminum.Ah, great point. I spent quite a lot of time trying to drill out a broken bolt extractor, I bet stainless might be worst than that.
They are crusty, a little rusty and have 185k on them.
BTW, I know the factory ones can be cleaned up, but after a nightmare experience with a broken one up by the firewall I just don't trust them. The metal they used seems really soft to me.