Does anyone have a rough idea how many 30mm Galvanised Plasterboard nails there are to the kilo? I don't need that many (using them to fix metal angle bead) but don't want to buy a kilo and end up having to buy another kilo when i can get a 2.5kg bag for less money, equally don't want to end up with loads left over as i don't have any other use for them?