DIN 9021 Plain Washers - Enhanced Stability and Reliability
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Discover DIN 9021 Plain Washers
DIN 9021 Plain Washers, often referred to as large diameter washers, offer a distinctive advantage with an outside diameter approximately ≈ three times the nominal thread diameter. Fabory proudly presents a diverse range of these washers, meticulously crafted to cater to various industries and applications.
Key Features and Specifications of DIN 9021 Plain Washers
- Amplified Stability: DIN 9021 washers are engineered with an oversized outside diameter, providing enhanced stability and load-bearing capacity. This design reduces the risk of fastener or material deformation under heavy loads.
- Material Diversity: Choose from a range of high-quality materials, including robust steel, corrosion-resistant stainless steel, and durable plastic polyamide (nylon) 6.6. Each material offers specific advantages to elevate your fastening solutions.
- Surface Excellence: Customize your steel washers with various surface treatments, including plain, zinc plating, and zinc plating with yellow passivation. These treatments enhance corrosion resistance and ensure long-lasting performance.
- Nominal Sizes: DIN 9021 Plain Washers are available in nominal sizes ranging from M3 up to M42, making them suitable for a wide spectrum of projects
- Class Variations: Depending on the size, DIN 9021 washers are classified with high pressure resistance: Stainless steel in 140HV, also 140HV for steel M3 up to, and including M16 and 100HV for steel in all sizes larger than M16, ensuring their suitability for heavy-duty applications.
Applications and Functionality of the DIN 9021 Plain washers
DIN 9021 Plain Washers excel in various fastening scenarios:
- Load Distribution: These washers evenly distribute loads across the fastened material, reducing stress and increasing stability, especially under heavy loads.
- Vibration Damping: The larger outside diameter of DIN 9021 washers provides better resistance to vibration and movement, enhancing the integrity of your fastening system.
- Material Protection: Washers protect the underlying material from damage caused by the fastener, ensuring long-term durability and reliability.
Quality Assurance
At Fabory, quality is paramount. Our DIN 9021 Plain Washers adhere to strict industry standards and undergo rigorous testing to ensure they consistently meet or exceed these benchmarks. You can rely on Fabory for unwavering quality and performance.
FAQ
How is the strength of DIN 9021 Plain Washers indicated, and what does "100 HV" or "140 HV" mean?
DIN 9021 Plain Washers are not specified by strength class like other fastening materials. Instead, their strength is indicated by hardness. For example, DIN 9021 washers come in 100 HV or 140 HV variants, where HV stands for Vickers hardness. This is one of the methods used to measure hardness.
Are there specific combinations of bolts, washers, and nuts that are commonly used with DIN 9021 washers?
DIN 9021 washers are often used to prevent the bolt head from leaving an imprint on the material being fastened. By increasing the contact surface, the washer distributes the same force over a larger area. As such, there is no specific combination of bolt/washer/nut that is universally used, but rather their use is dictated by the requirements of the application.
Can you explain the different hardness measurement methods, such as Vickers hardness (HV), Rockwell hardness (HRC), and Brinell hardness (HB), and how they relate to DIN 9021 Plain Washers
All hardness measurement methods use a type of press to indent the material. E.g. Vickers uses an upside down pyramid shape to leave a mark in the surface of the material. This is applied using a set force. After this, the surface of the mark is measured. This results in a calculated value according to HV. Where Rockwell and Brinell differ from Vickers, is mainly the shape of the indent, and thus the way the hardness will be calculated. For HRC the shape is conical, where Brinell uses a ball form.
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