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DIN933 1.4547 254smo Hex Head Bolt. Superior Corrosion Resistance: High Mo, Cr, N content provides excellent resistance to pitting, crevice, and stress corrosion cracking. Wide Application Range: Suitable for petroleum, pulp/paper, desalination, and seawater cooling systems. High Mechanical Strength: Higher strength than other austenitic stainless steels due to high nitrogen content. Excellent Weldability: Low carbon content prevents carbide precipitation, ensuring good weldability without intergranular corrosion. Professional Service: Backed by 18 years of experienced sales and professional service. Customization Available: OEM services and customized sizes are accepted.