DIN 125
DIN 125 is a standard from the German Institute for Standardization (DIN) for flat washers. This standard defines the dimensions, materials, and technical requirements for flat washers used in a wide variety of mechanical and structural applications. Washers according to DIN 125 are available in various sizes and materials to meet different needs.
Features and Dimensions
DIN 125 washers are divided into two main types:
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DIN 125-A: Flat washers without chamfer
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DIN 125-B: Flat washers with chamfer
The dimensions vary depending on the screw size and type, with common diameters ranging from M1.6 to M64. Thickness and outer diameter are also standardized to ensure consistent fit.
Materials and Coatings
DIN 125 washers are made from various materials to meet different requirements for corrosion resistance, strength, and temperature resistance. Common materials include:
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Steel
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Stainless steel
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Brass
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Plastics
Additionally, washers may be coated (e.g. galvanized, nickel-plated, phosphated) to enhance corrosion resistance.
Areas of Application
DIN 125 washers are used in many industries, including:
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Mechanical engineering: For load distribution and surface protection
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Construction industry: To secure structural connections
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Electronics: For insulation and component fixing
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Automotive industry: To secure bolted connections in vehicles
Assembly and Use
When assembling with DIN 125 washers, selecting the correct size and material is essential to ensure optimal performance and durability. Washers should be evenly placed and properly aligned to ensure uniform load distribution.
Conclusion
DIN 125 washers are essential components in many mechanical and structural applications. Their standardized dimensions and materials ensure a reliable and secure connection across a wide range of use cases.