Our 10.9 grade black-nickel plated countersunk head hex screws are high-strength fasteners designed for industrial, DIY, and precision assembly scenarios. Crafted from high-quality carbon steel, each screw undergoes strict heat treatment to achieve 10.9 grade high strength—ensuring it can bear heavy loads and resist deformation, making it ideal for long-term use in harsh environments.
The screws feature a black nickel plating finish, which not only enhances corrosion resistance but also gives them a sleek, professional appearance that complements various application scenarios. Available in three common sizes (M2, M2.5, M3), they are perfectly compatible with electronics, machinery, furniture, and small device assembly.
