Bostitch FAC Series Flat Angle Coil Pattern Ring Coil Nails are designed for high volume operation The coils contain large quantities of nails meaning that reloading down time can be kept to a minimum You will find them used in the pallet and crate fencing garden furniture and the construction industries To Suit N71C-1-E N75C-2-E N80CB-1ML N89C-1P-E N89C-2K-E All Coil Nails are Round Head nails Typically Coils of nails with diameters from 20 mm to 22 mm contain 350 nails Coils of nails with diameters from 25 mm to 31 mm Contain 225 nails Roofing nail coils contain 120 nails due to the extra large diameter of the head 15° Collation Angle Bright finish is without any form of protection and is the most economical choice but the nails will start to rust before nails that have a protective treatment Used in applications where no protection is required for example a one way disposal pallet As all standard nails come with this finish Galvanising or coating with Zinc is the best way to prevent nails from corroding The zinc does not protect the steel of the nail but is corroded first The thicker the zinc coating the longer it will be before the nail is attacked The thickest coating is called hot dipped and is applied by dipping the nails into a bath of molten zinc Galvanised protection is measured in Microns each Micron is 0000001 of an metre thick The thicker the micron coating the better the protection level of the nails