Rivet nuts 1)Size:M3 to M12 2)Flat head, flat hexagon head,small countersunk head 3)Material:carbon steel,SS,Alum,copper Rivet nuts1)Size:M3 to M12 2)Flat head, flat hexagon head,small countersunk head 3).Material:stainless steel, carbon steel, aluminum 4).Finished: Zince, Nickel,etc.5).Flat head, flat hexagon head, small countersunk head6).Standard: DIN, JIS ,ISO, BS, ANSI...etcPackage detail:At ...