... sizes finish:nickel plated,zinc plated with or without hardend wood screw with all kinds of head and sizescoach screws,fasterner,screws ... :carbon steel,stainless steel,brass7.size:M3,M4,M5,M6,M7,M8,M10,M12,M14,M16,M18,M20,M22,M24,M27,M30 wood screw ...