Forgefix plasterboard nail zyp forgefix 212nlpn30zyp these forgefix plasterboard nails are zinc yellow passivated for corrosion resistance they have indented shanks and countersunk heads and can be used widely in many joinery applications the shape of the nail makes them ideal for fixing plasterboard and cladding the zinc yellow passivation process of electroplating is similar to the galvanised and zinc plated processes but with the addition of a yellow dye it provides a coating that