304 Stainless Steel Black Serrated Lock Washer M3/M4

This versatile lock washer is crafted from durable 304 stainless steel, ensuring reliable performance and resistance to corrosion. Available in M3 and M4 sizes, its black finish adds an element of sleek, modern aesthetics to your projects. The serrated design enhances grip and prevents loosening due to vibrations, making it an ideal choice for secure fastening in various applications. Standard No.: DIN 6797J Surface Treatment: Black zinc plating Material Grade: 6.8 Product Grade: A-level Manufacture country: China Instructions included: No