Ensure optimal security and stability with our External Tooth Lock Washer. This essential component, featuring a DIN 6798A specification type, guarantees a snug fit for M4 hole sizes. Crafted from durable steel with a zinc finish coating, it offers reliable protection against corrosion. With an outside diameter of 8mm and precise thickness of .5mm, it's designed to meet stringent metric standards. The internal diameter of 4.3mm ensures compatibility with a variety of fasteners, while its RoHS compliance underscores our commitment to environmental responsibility. Trust in this high-quality washer for your industrial or DIY projects, where dependable fastening is paramount.