(1)Standard :DIN6915 (2)Grade: From Class 8 to Class 12. (3)Sizes: M8-M64 (4)Material: Carbon steel, Alloy Steel, etc (5)Finished: Black, Zinc, HDG, PTFE, etc. (6)Packing: 1.Less than 25kgs bulk into carton, then packed on pallet 2.Small box or color box, then into carton, then packed on pallet 3.As customers' request.