2205 duplex stainless steel hexagon socket countersunk head screw adopts standard tapered countersunk head with internal hexagon drive. After tightening, the head can be fully sunk into the workpiece for a flush surface without protrusion, avoiding interference with adjacent parts. The duplex microstructure of 2205 delivers high mechanical strength and excellent resistance to chloride pitting, crevice corrosion and stress corrosion cracking, performing reliably under marine salt spray, seawater and humid chemical environments.

Offshore platform walkway plates, railing connections, auxiliary steel structures of cross-sea bridges, wind turbine housings, ship machinery, port equipment, chemical facilities and heavy machinery with flush assembly requirements.

1. Tapered countersunk head, fully embedded after installation for flat surface;
2. Hexagon socket drive supports high tightening torque, good vibration resistance;
3. 2205 duplex steel, outstanding resistance to salt spray and chloride corrosion for marine service;
4. Higher mechanical strength than ordinary 304/316 stainless steel for long-term heavy-duty use;
5. Sizes M18-M48 available, custom lengths supported.