The LOCK WASHER INTERNAL STAINLESS 3/8" INTERNAL TOOTHED (SKU: XILW38SS) is engineered to provide superior grip and prevent loosening under vibration. Made from high-quality stainless steel, this lock washer is resistant to corrosion and suitable for use in harsh environments. Its internal tooth design ensures a strong hold on fasteners, making it ideal for automotive and industrial applications where reliability is critical. Trust this lock washer to enhance the longevity and performance of your assemblies.