Material: Carbon steel
Hardness 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 blackened threaded rod. Made from high-strength steel. The surface is treated with a blackening process, forming a uniform black oxide film that provides basic rust resistance and wear resistance, with controllable cost and excellent cost-effectiveness. The core advantage is high-strength load-bearing capacity. Suitable for conventional applications with clear strength requirements such as machinery manufacturing, equipment fixing, and hardware connections. Highly practical.