... sizes finish:nickel plated,zinc plated with or without hardend wood screw with all kinds of head and sizescoach screws,fasterner ... HEAD ROUND HEAD POZI HEAD TRUSS HEAD HEX HEAD4.Packing:bulk packing or suitable quantity into color box,then to ourter ... ,M10,M12,M14,M16,M18,M20,M22,M24,M27,M30 wood screw with all kinds of head and sizes