Rondelle de blocage 6 De Dietrich JJJ030005293

The lock washer size 6 is a standard fastening accessory used to secure bolts and screws in boiler and burner assemblies. Its split design creates tension that prevents loosening due to vibration or thermal expansion. Essential for maintaining tight connections in heating equipment, this washer is a simple yet critical component for reliable operation. A must-have in any boiler spare parts kit for maintenance and repair tasks.