Article: Spring (corrugated) Shape B according to DIN 137 Size: M6 Quantity: 50 pieces Stainless steel (stainless steel A2 V2A), weather resistant, suitable for the outside. Superior quality product Material: Made of reliable A2 stainless steel. These spring washers are made of stainless steel A2. This material has the great advantage it is stainless. This ensures a long life and increased reliability. The puck thus fulfills all its functions, even outdoors as well as in wet pieces. DIN 137 spring washers. The spring washers are classic washers and should not be missed In no toolbox. They offer many advantages and are willingly placed under screwed fittings. More safety thanks to the vibration protection. Thanks to its corrugated form, the spring disk exerts a certain pressure on the screwing point. This dampens all the vibrations that could cause relaxation by a nut. This is the reason why the use of the spring washer in many fields of application is essential to ensure more security.