Is there a good substitute for 518 on the bolts are people using something different? I can't find 518 locally, I can order it but I didn't know if there is something I could just go get. Same goes for molykote 111 mine got lost in shipping and I'm looking for a good local alternative for crank seals, orings, and the bolts. I can find silicone but it is for plumbing and it just doesn't seem like it is good for this application.