... -M76 2.Material:Carbon Steel, Mild Steel, C1008,C1010,C1035,C1045,etc 3.Standard:ISO,DIN,ASME,etc Carbon Steel/Alloy Steel Bolt And Nut sizeM3-M76Faceplain ... ,zinc plated,black oxide,hot dip galv.etcMaterialCarbon Steel/Alloy Steel/Stainless SteelGrade4.6 ...