Bostitch 21 galvanised stick nails packs of 2000 bostitch rh25r55g50 this box of 2000 galvanised ring shank stick nails 25 x 55mm from bostitch have been designed with round heads and are used within a feed mechanism keeping the nailer tool lighter ideal for situations when a nail needs to be applied for a long period of time without removing it such a design makes them ideal for exterior trim siding and sub floors while the galvanised finish prevents corrosion allowing them to be u