Had nut for power steering pulley go missing right before my eyes. Part #08911-6422A. It fell on the ground and cannot locate it, believe me I've looked. I will have to wait 4 days for this nut from dealer or if I can get the specs I can probably find a good auto quality replacement at Ace Hardware or elsewhere. Uses a 19mm wrench but I need the pitch of the threads. Is that information I can find?