DIN standard fastener 1.Description:DIN6923 Hexagonal flange Nut 2.Material:carbon steel 3.Size:M5-M20 DIN standard fastener1.Description: DIN6923 Hexagonal flange Nut2.Standard:DIN3.Material:carbon steel4.Grade:4,6,85.Size:M5-M206.Length:no7.slot:no8.Head:no 9.Thread:no10.Point: no11.Finish:yellow / Zinc Plated12.Packing:bulk,box,carton,pallet or according to your requests