Secure your fasteners with ease using this stainless steel Internal Tooth Lockwasher. Designed for #4 hole sizes, this lockwasher features an outside diameter of .252 inches and a precise inside diameter of .119 inches, ensuring a snug fit for your application. With a thickness of .015 inches, it provides reliable locking power, giving you peace of mind that your assembly is securely fastened. Plus, its RoHS compliance guarantees that it meets strict environmental standards. Perfect for a wide range of industrial and DIY projects, this lockwasher is a must-have for any toolkit.