M8 External Serrated Lock Washers DIN 6798A, Stainless Steel Shakeproof Star for Bolts & Screws, Anti-Loosening Fasteners, Corrosion Resistant (Pack of 20)

M8 External tooth serrated lock washers, also known as external tooth star washers, are designed to prevent nuts and bolt heads from loosening by creating tension through their serrated internal edges. MATERIAL QUALITY: These washers are commonly manufactured from A2 stainless steel (equivalent to 304 stainless steel), offering good corrosion resistance and durability. They are produced in accordance with DIN 6798J standards, ensuring compatibility and reliability across various applications. Functionality: Provides resistance against vibration, shock, and rotational loosening, Ideal for electrical grounding and securing bolts, nuts, and screws. VERSATILE USE: Suitable for various mechanical and industrial applications where secure fastening is essential. When tightened, the teeth bite into the bearing surface, providing resistance against rotation and effectively absorbing shock and vibration. Lock Washers with external teeth are particularly effective in applications involving soft substrates like aluminum or plastic, as well as in electrical grounding where the teeth can cut through surface oxides or finishes to ensure a conductive path.