Enhance fastening security with our Internal Tooth Lockwasher, designed for precision and durability. Crafted from high-quality steel with a zinc finish coating, it offers reliable protection against loosening or slipping. The washer boasts an outside diameter of 1.815 inches and a thickness of .063 inches, ensuring a perfect fit for your assembly needs. With an inside diameter of 1.16 inches and a hole size of 1-1/8, it guarantees optimal functionality. Rest assured, this lockwasher is compliant with RoHS regulations, reflecting our commitment to environmental responsibility. Elevate your projects with this essential component for effective and long-lasting fastening solutions.