Kontermutter De Dietrich 721398600

A lock nut is a fundamental fastener used to secure components in boiler and burner assemblies, preventing loosening due to vibration or thermal expansion. As a common boiler spare part, it ensures the integrity of connections in heating equipment components. This durable nut is designed for repeated use and compatibility with standard threads, making it a practical addition to any maintenance kit for gas burner parts or general repairs.