Wondering if anyone has the part number of the center screw that connects both covers where they overlap? Or if one of the 10mm screws would work in its place? Did an oil change myself for the first time last weekend, and my understanding is that that screw is supposed to be 11mm. On mine, an 11mm socket barely catches on it, but 10mm is too small. Luckily I was able to get if off and back on, barely. The head doesn't really look worn/stripped at all. I also tried the closest SAE sockets just in case and they didn't work either. Very weird. I was able to find a part number (I think) for the 10mm, but not the 11. I might just take it off again and see if I can file it down so the 10mm socket fits.