Material: Carbon steel
Strength grades: 4.8, 8.8, 10.9, 12.9
Surface finishes: Plain / natural, blue-white zinc plated, yellow zinc plated, hot-dip galvanized, tempered blackened, Dacromet
High-strength yellow zinc plated flat head socket cap screw. Treated with electroplated zinc plus yellow passivation, resulting in a golden or rainbow-colored luster for enhanced visual appeal. Rust resistance is superior to blue-white zinc plating, with good toughness and not prone to damage. Moderate cost. Suitable for mechanical equipment, construction hardware, automotive parts, and light outdoor use, balancing aesthetics with practicality.