DIN 6798
DIN 6798 is a standard from the German Institute for Standardization (DIN) for serrated lock washers. It defines the dimensions, tolerances, and mechanical properties of lock washers used to secure bolted connections. Washers per DIN 6798 are available in various sizes and materials to meet different requirements.
Characteristics and Dimensions
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Sizes range from M2 to M36
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Serrated edges bite into contact surfaces to prevent loosening by vibration
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Washer types:
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Type A: External teeth
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Type J: Internal teeth
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Type V: Combination of internal + external teeth
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Materials and Surface Treatments
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Materials: steel, stainless steel, brass
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Treatments: zinc plating, bluing, nickel plating
Applications
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Mechanical engineering
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Automotive
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Electrical engineering
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Construction
Installation and Usage
Place the washer between the bolt head or nut and the mating surface to ensure even pressure distribution and prevent loosening.
Conclusion
DIN 6798 serrated lock washers provide reliable and secure fastening thanks to standardized dimensions, proper materials, and tooth configuration – ideal for demanding applications.