Sicherungsscheibe DIN 7980 – 12 De Dietrich 7627292

The lock washer DIN 7980-12 is a spring washer designed to prevent nuts and bolts from loosening due to vibration or thermal expansion in boiler and burner systems. It provides a secure locking action that maintains tension in fasteners, critical for safety and reliability in heating equipment. This washer is commonly used in burner assemblies, pump mounts, and boiler components where vibration is present. Ensure your maintenance kit includes these washers for durable and long-lasting connections.