M12x1.75 Metric Serrated Hex Flange Nuts, 10.9 Grade Alloy Steel, Black Zinc Finish, Pack of 8

RAYGOODA serrated hex flange nuts are made of 10.9 grade alloy steel with high tensile strength. Black zinc plated surface offers good anti-rust and wear resistance.Integrated serrated flange creates anti-loosening friction without extra washers, stable under vibration and dynamic loads. Precision metric threads fit matching bolts smoothly, no stripping.Standard hex design works with common wrenches & sockets for easy installation. Widely used in auto repair, machinery, construction and industrial equipment.（ Not recommended for long-term use in humid outdoor environments）Strict dimensional & surface quality control for reliable performance. Contact us if you have size questions.

• Black zinc plated alloy steel nuts are made of high-strength 10.9 grade alloy steel with great tensile strength for heavy load applications. It features basic rustproof and wear-resistant performance, and is not recommended for long-term use in humid outdoor environments.
• Integrated serrated flange creates strong anti-loosening friction, eliminating the need for separate flat or lock washers, keeps stable fastening under vibration and dynamic loads.
• Precision metric threads match standard bolts smoothly without slipping; universal hex head fits common wrenches & sockets for quick assembly in auto, machinery and construction.
• Contains 8 PCS M12 serrated flange nuts, neatly packed in an elegant storage box for easy storage and transport.
• Exceptional Value and Reliable Quality：We specialize in manufacturing sturdy, stable industrial fasteners with strict quality control. Customer satisfaction is always our top priority, feel free to contact us anytime if you have any questions.