Material: Carbon Steel
Hardness: 100HV / 200HV / 300HV
Finishes: Plain / Blue-White Zinc Plated / Yellow Zinc Plated / Hot-Dip Galvanized / Blackened / Dacromet
High-Strength Blackened Flat Washer – Features a blackened finish that forms a dense black oxide film, providing moderate rust resistance and an attractive appearance. Meets hardness standards with excellent strength, capable of withstanding high pressure and friction. Suitable for various high-strength fastening applications. Effectively distributes bolt load and prevents damage to connected components. Widely used in machinery manufacturing, equipment repair, automotive chassis, and general indoor and outdoor industrial environments.