Zinc Plated, 8.8 SteelDIN 912ISO 4762Master Assortment Kits are Available. Click HereClick Here for Technical Data SheetM8 Socket Cap Screws 8.8 Steel, Zinc Plated$0.01PriceLengthSelectQuantity50 pcsQuantityAdd to cartAlso available in these materials 12.9 Steel A2 Stainless Steel A4 Stainless Steel Nylon Also available these finishes Black Zinc Flake Variations Also available vented (slotted or center) in A2 Stailess Steel