Lavatrice? 8, 4mm (10 ps) De Dietrich S103249

A washer with an inner diameter of 8.4mm is a small but crucial component in boiler and burner spare parts. It distributes load evenly under a screw head or nut, preventing damage to surfaces and ensuring a secure fit. Perfect for use in heating equipment repairs, this washer helps maintain proper tension and alignment in gas burner assemblies.