Black Oxide, 12.9 SteelDIN 912ISO 4762Master Assortment Kits are Available. Click HereClick Here for Technical Data SheetM12 Socket Cap Screws, 12.9 Steel, Black Oxide$0.01PriceLengthSelectQuantity25 pcsQuantityAdd to cartAlso available in these materials 8.8 Steel A2 Stainless Steel A4 Stainless Steel Nylon Also available these finishes Black Zinc Zinc Flake Variations Also available vented (slotted or center) in A2 Stailess Steel