Standard: Astm a193 b7/b7m/b8/b8m, din975, din835, din938, din939, din940, din949, din2509 Grade: 4.8, 8.8, 10.9, 12.9 Size:M6 m64, 1/4"3" Surface treatment: Plain, black, zinc plated, hdg Material:Carbon steel, alloy steel, stainless steel By cartons and then on wooden pallet or according to the customer requirment.
