Hexagon Nut DIN934 Size: M3 - M72 ( M3-M30 Cold forging M33 - M72 hot forging ) Material: Steel Material: Carbon SteelSurface for steel items: Plain,zinc plated,yellow zinc plated,black,hot dip galvanizeClass 6, 8,10Standard export packing: 1,bulk in 20-25 kgs cartons than on pallets 2,small box into carton then on pallets 3,according to customer's request