Button head hex socket screws according to ISO 7380-1, property class 10.9, with a NiS black nickel coating. The button head features a rounded, raised head profile, while the hex socket provides secure and controlled torque transmission during installation. The NiS black nickel coating provides corrosion protection and a black surface finish. This category includes multiple sizes for machinery, equipment and industrial assemblies where high strength, corrosion protection and a black surface finish are important requirements.