Internal Tooth Lock Washer DIN 6797 J

Internal Tooth Lock Washer is designed with inward-facing teeth along its inner walls, providing a secure grip on fasteners. These ring-shaped metal washers feature serrated edges that bite into the head of a screw or bolt, holding the fastener firmly in place. Internal Tooth Lock Washers are particularly effective for small screws or screws used in electrical grounding applications, ensuring a reliable connection by preventing loosening and maintaining tension.