Today I was changing both valve cover gasket and upper timing gasket and when doing the final assembly on the left side (near the alternator) I dropped one nut (part number 07129905568) it fell near the alternator so I removed the alternator, but still cant find it. Is there an alternative nut that I can use? Ecs tunning says its m6x20mm nut. Can I just buy this type of nut from bunnings (same as home depot or lowes in usa)? Or anyone in Australia have a spare nut to overnight it to me?

04 4.8is