I hardly ever label parts. If its the wrong bolt, it won't fit properly. And if it does, the bolt that was supposed to be there won't fit in the other spot. So you'll know you got it wrong. Whenever I work on something I just throw all the bolts on a magnetic tray and don't think twice! And if you end up with bolts left at the end... you don't need em! And if you DO need em, youll find out in time