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 hot-dip galvanized carriage bolt. Surface treated with hot-dip galvanizing, offering strong corrosion and rust resistance, excellent high/low temperature resistance, and anti-aging properties. Suitable for harsh environments. Carbon steel substrate with good load-bearing capacity. Complies with national standards. Widely used in outdoor equipment, power, telecommunications, bridges, and other open-air applications.