GUWANJI 8.8 Grade Blackened Hex Head Bolt

This GUWANJI high-strength 8.8 grade hex head bolt is made from durable carbon steel, featuring a blackened surface treatment for enhanced corrosion resistance. Conforming to GB/T 5783 standard, it is designed for robust fastening in various industrial and construction applications.

Surface treatment: Black type: External hexagon Material: Carbon Steel Implementation Standards: GB /T 5783 Nominal diameter: 16mm Nominal length: 55mm Performance level: 8.8