... etc Finish: Passivated, Black Oxide, Zinc,Dacromet etc Hexagon domed cap nuts DIN1587Size:M4-M24 Grade:6S A2-50 etc Finish: Passivated ... , Zinc,Dacromet etcMaterial:Stainless Steel,Carbon Steel1) Various kinds of nuts are available2) Can be made with different tensile strength, such ... products infos for your reference.Welcome customerized drawings. Hexagon domed cap nuts