The M4 Hex Kep Lock Nut is crafted from 18-8 stainless steel, providing excellent corrosion resistance and durability. Each jar contains 100 lock nuts, designed to prevent loosening under vibration and stress. The hex shape allows for easy installation with standard tools, making them ideal for a variety of applications, including automotive, machinery, and construction. These lock nuts meet industry standards, ensuring reliability and performance in demanding environments. A must-have for any toolbox, they offer a secure fastening solution for both professionals and DIY enthusiasts.