DIN 127
DIN 127 is a standard from the German Institute for Standardization (DIN) for spring washers. It defines the dimensions, tolerances, and mechanical characteristics of spring washers used to secure screw connections. Spring washers according to DIN 127 are available in various sizes and materials to satisfy different demands.
Properties and Dimensions
DIN 127 spring washers come in various diameters, with common sizes ranging from M2 to M36. These washers are spiral-shaped with a rectangular cross-section. When the bolt is tightened, the spring washer is compressed, producing a spring effect that prevents the connection from loosening unintentionally.
Materials and Surface Treatments
DIN 127 spring washers are made from different materials to meet varying demands for strength and corrosion resistance. Common materials include:
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Spring steel
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Stainless steel
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Brass
They may also receive surface treatments such as galvanizing, blackening (bluing), or phosphating to increase corrosion resistance.
Areas of Application
DIN 127 spring washers are used in many fields, including:
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Mechanical engineering: To secure bolted connections in machines and equipment.
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Automotive industry: To secure screw connections in vehicles.
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Construction industry: To secure structural connections in buildings and bridges.
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Household appliances: To secure screw joints in various devices.
Assembly and Use
When installing DIN 127 spring washers, it's important to select the correct size and appropriate material to ensure optimal connection performance and longevity. The washer should be placed under the bolt head or nut to provide even pressure distribution and prevent loosening.
Conclusion
DIN 127 spring washers are essential fastening elements in many mechanical and structural applications. Their standardized dimensions and materials ensure reliable and secure bolted connections that meet the demands of various use cases.