Material: Carbon steel
Strength grades: 4, 8, 10, 12
Surface finishes: Plain / natural, blue-white zinc plated, yellow zinc plated, hot-dip galvanized, tempered blackened, Dacromet
Long hexagon structure for easy operation. Extended thread accommodates deep connection needs. Precision-machined smooth threads provide sufficient locking force and high load-bearing capacity. Surface treated with blue-white zinc plating, offering a uniform, dense coating that resists peeling, with excellent rust and corrosion resistance. Suitable for automotive parts, mechanical equipment, heavy-duty frames, instruments and meters, and other indoor/outdoor applications. Economical, practical, sturdy, and durable, combining high strength with rust resistance.