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Galvanized M4 M5 Plain Washers 2mm DIN125 Flat Washers M5 M16 M20 Metal Washer

Stainless Steel Flat Washers are essential components used to distribute the load of threaded fasteners, providing secure and reliable fastening. Made from corrosion-resistant stainless steel, these washers are suitable for use in harsh environments, including marine, chemical, and food processing applications. Available in various types and finishes, stainless steel flat washers offer durability, strength, and aesthetic appeal, making them a versatile choice for a wide range of industrial and commercial applications.
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Galvanized M4 M5 Plain Washers 2mm DIN125 Flat Washers M5 M16 M20 Metal Washer



Stainless Steel Flat Washers are simple yet essential components used in a wide range of applications to distribute the load of a threaded fastener, such as a bolt or screw. Made from stainless steel, these washers offer excellent corrosion resistance, making them suitable for use in harsh environments. Here’s a detailed overview of stainless steel flat washers:

1. Design and Structure:

  • Flat, Circular Shape: Stainless steel flat washers are typically round with a flat surface and a central hole.

  • Uniform Thickness: They have a consistent thickness throughout, ensuring even distribution of load.

2. Material:

  • Stainless Steel: Commonly used grades include:

    • 304 Stainless Steel: Offers good corrosion resistance and is suitable for most general-purpose applications.

    • 316 Stainless Steel: Provides enhanced corrosion resistance, especially in marine and chemical environments, due to the addition of molybdenum.


3. Surface Finish:

  • Plain: Typically has a natural stainless steel finish, providing a sleek and corrosion-resistant surface.

  • Passivated: Treated with a passivation process to enhance corrosion resistance by removing free iron from the surface and forming a protective oxide layer.

  • Electropolished: Provides a smooth, shiny finish and improved corrosion resistance.

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4. Types of Stainless Steel Flat Washers:

  • Standard Flat Washers: The most common type, used to distribute the load and prevent damage to the surface being fastened.

  • Extra Thick Flat Washers: Provide additional strength and load distribution for heavy-duty applications.

  • Oversized Flat Washers: Have a larger outer diameter to distribute the load over a wider area.

  • Undersized Flat Washers: Have a smaller outer diameter for use in confined spaces.

5. Applications:

  • Construction: Used in structural applications to distribute the load and prevent damage to materials.

  • Automotive: Used in vehicle assembly and maintenance to ensure secure fastening and load distribution.

  • Marine: Ideal for use in marine environments due to their excellent corrosion resistance.

  • Food and Beverage: Suitable for use in food processing equipment due to their hygienic properties and resistance to corrosion.

  • Chemical Processing: Used in chemical plants and laboratories where resistance to corrosive substances is required.

  • General Manufacturing: Used in various manufacturing processes to ensure secure and reliable fastening.

6. Advantages:

  • Corrosion Resistance: Stainless steel provides excellent resistance to rust and corrosion, making these washers suitable for harsh environments.

  • Durability: High strength and resistance to wear ensure long-lasting performance.

  • Hygienic Properties: Stainless steel is easy to clean and maintain, making it suitable for use in food and medical applications.

  • Aesthetic Appeal: The natural finish of stainless steel provides a clean and professional appearance.

7. Standards:

  • Stainless steel flat washers are manufactured to meet specific industry standards, such as:

    • ISO (International Organization for Standardization)

    • DIN (Deutsches Institut für Normung)

    • ANSI (American National Standards Institute)

    • BS (British Standards)




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