1.material:stainless steel ,carbon steel 2.standard:DIN,GB,ANSI,BSW 3.specification:M3~M45 ,3/16"~1-3/4" 4.finish:galvanize 1.material:stainless steel ,carbon steel2.standard:DIN,GB,ANSI,BSW3.specification:M3~M45 ,3/16"~1-3/4"4.finish: Natural color, galvanized, hot dip galvanized, black, yellow zinc plating5.package: Bag, paper bag, tray foundation bolt and nut