M3-M10 Black Hex Nuts, Grade 4.8 High Strength, Full Range of Specifications

These black hex nuts are designed for a variety of applications, offering high strength and durability. Made from Grade 4.8 materials, they ensure reliable fastening performance. With a comprehensive range of specifications from M3 to M10, they are suitable for different projects and can accommodate various bolt sizes. Their sleek black finish not only enhances their aesthetic appeal but also provides additional protection against corrosion, making them ideal for both indoor and outdoor use. Standard No.: GB6170-86 Surface treatment: Oxidation black Strength level: 4.8 Manufacture country: China Instructions included: No