Bostitch straight finish nails galvanised packs of 10002500 bostitch sb16 225 this pack of 2500 straight finish galvanised nails 56mm from bostitch are suitable for a host of applications including cabinets and shelves while ideal for interior trim and trim work in the construction and joinery industries manufactured to a high standard with galvanised finish the heads of these nails are rectangular with a width exactly the same as the shank although the breadth is greater meaning the