Material: Carbon Steel
Blackened Carbon Steel Phillips Flat Head Self-Drilling Screw – Blackened surface treatment effectively enhances wear resistance and oxidation resistance, offering high overall hardness and good toughness. The simple matte black finish is suitable for dark-toned decoration and industrial assembly applications. The Phillips flat head design provides a hidden, flush installation with stable self-drilling performance, strong fastening torque, and resistance to stripping and thread damage. Commonly used in machinery equipment, hardware assembly, and indoor dark-colored building material connections.