- Package Contents: This set includes 280 essential toothed washers in 7 different sizes: M3x9mm, M4x12mm, M5x14mm, M6x16mm, M8x18mm, M10x20mm, and M12x25mm. - Durable Material: Crafted from high-quality 65Mn steel, these toothed washers are engineered for stability, wear resistance, and long-lasting strength. - Easy Application: Simply place the toothed washer onto the screw or bolt before tightening. The unique design grips the fastener securely, preventing loosening over time. - Versatile Usage: Ideal for a wide range of applications including automotive, machinery, furniture assembly, and electronics. These washers are particularly effective in high-vibration environments where traditional fasteners may fail. - Enhanced Performance: The combination of superior material and design ensures reliable performance in various settings, providing peace of mind that your connections will remain secure. Choose this toothed washer set to enhance the durability and reliability of your projects, ensuring that you have the right sizes for every job.