Wave-Unterlegscheibe DIN 137b m8x15x0.8 De Dietrich 7774199

This wave washer din 137b m8x15x0.8 is a spring washer used to prevent loosening of fasteners in boiler and burner assemblies. With an M8 size, 15mm outer diameter, and 0.8mm thickness, it provides axial flexibility and maintains tension under vibration. Commonly used in heating equipment, it secures screws and bolts in place, reducing the risk of component failure. Whether you are assembling a gas burner or repairing a boiler, this washer is an essential part for ensuring reliable connections. Its wave design offers superior locking performance compared to standard flat washers, making it a preferred choice for maintenance and repair tasks.