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DIN 9021 Washers ISO 7093 Flat Washer Stainless Steel 304 A2 Purification
$17.99 – $64.99
Description
DIN 9021 washers (ISO 7093) made from Stainless Steel 304 (A2) are widely used in purification, industrial, marine, and structural applications due to their corrosion resistance, durability, and load distribution properties. These washers provide a larger outer diameter compared to standard flat washers, offering enhanced load-bearing capacity and protection for delicate surfaces. Ever Hardware provides custom made fasteners and customizable packaging.
Key Advantages
1. Superior Corrosion and Rust Resistance
• Made from stainless steel 304 (A2), these washers resist moisture, humidity, and chemical exposure.
• Ideal for marine, food processing, medical, and purification applications where hygiene and longevity are critical.
2. Large Outer Diameter for Load Distribution
• Distributes pressure more evenly, reducing the risk of damage to softer materials.
• Prevents screws and bolts from pulling through or damaging surfaces like wood, plastic, and thin metal sheets.
3. High Strength and Durability
• Withstands heavy loads and repeated use without deforming or breaking.
• Provides excellent mechanical performance in high-vibration and structural applications.
4. Purification and Hygienic Applications
• Smooth surface and corrosion resistance make it suitable for water treatment plants, food-grade equipment, and pharmaceutical processing.
• Prevents contamination and bacterial buildup due to its non-reactive and easy-to-clean properties.
5. Temperature and Weather Resistance
• Performs well in extreme temperatures, making it ideal for outdoor, high-heat, and cold environments.
• Resistant to UV radiation and environmental factors, ensuring long-term reliability.
6. Non-Magnetic and Electrically Insulating
• Non-magnetic properties prevent interference in electronic and precision equipment.
• Provides some electrical insulation, reducing risks in electrical assembly applications.
7. Versatile and Multi-Purpose Use
• Common in industrial, automotive, aerospace, and purification equipment.
• Used in bolted connections, plumbing, mechanical assemblies, and structural frameworks.
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Common Applications
• Purification & Water Treatment – Non-corrosive and hygienic fastening.
• Food & Pharmaceutical Equipment – Hygienic, rust-free hardware.
• Marine & Outdoor Applications – Resistant to saltwater and harsh weather.
• Electronics & Machinery – Vibration-resistant load distribution.
• Structural & Construction – Reinforces connections on thin or soft materials.
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Conclusion
DIN 9021 Washers (ISO 7093) Stainless Steel 304 (A2) offer corrosion resistance, superior load distribution, durability, and hygiene-friendly properties, making them an ideal choice for purification, marine, industrial, and structural applications.
Size | M2.5 | M3 | M3.5 | M4 | M5 | M6 | M8 | M10 | M12 | M14 | M16 | M18 | M20 | M22 | M24 | M27 | M30 |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Inner Diameter | 2.7-2.84 | 3.2-3.38 | 3.7-3.88 | 4.3-4.48 | 5.3-5.48 | 6.4-6.62 | 8.4-8.62 | 10.5-10.77 | 13.0-13.27 | 15.0-15.27 | 17.0-17.27 | 20.0-20.52 | 22.0-22.52 | 24.0-24.84 | 26.0-26.84 | 30.0-30.84 | 33.0-34.0 |
Outer Diameter | 7.64-8.0 | 8.64-9.0 | 10.57-11.0 | 11.57-12.0 | 14.57-15.0 | 17.57-18.0 | 23.48-24.0 | 29.48-30.0 | 36.38-37.0 | 43.38-44.0 | 49.38-50.0 | 54.1-56.0 | 58.1-60.0 | 64.1-66.0 | 70.1-72.0 | 82.8-85.0 | 89.8-92.0 |
Thickness | 0.8 | 0.8 | 0.8 | 1.0 | 1.2 | 1.8 | 2.0 | 2.5 | 3.0 | 3.0 | 3.0 | 4.0 | 4.0 | 5.0 | 5.0 | 6.0 | 6.0 |
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