M12x1.75mm Metric Serrated Hex Flange Nuts, Grade 10.9 Alloy Steel, Heat Treated, Black Oxide Finish, 5PCS

Made of 10.9 Grade Alloy Steel, with a black surface oxidation treatment, these bolts are strong, durable, and have excellent wear resistance, high hardness, and high strength. Please do not install them in wet environments or outdoors. | Serrations - Serrations help grip the material surface for easy installation and provide mild vibration resistance.Commonly used in conjunction with bolts or screws to provide secure fastenings into unthreaded holes. You could find the matched bolts in our store | Package Included: 5 x M12 Flange Hex Nuts | Perfect For Interior Renovation, Mechanical Installation Communication Equipments and Ship Assembly | INTIMATE SERVICE - YIIFLY focus on customer satisfaction, if you have any questions or are not satisfied, you can contact us by email, we will solve all your problems as soon as possible.