Hardness testing to ISO 6508-1
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The DIN 7989 washer is a specific type of washer made from stainless steel, a material known for its exceptional corrosion resistance and durability. These washers are designed to be used in various applications where a secure and long-lasting fastening solution is required.
Key characteristics of the stainless steel DIN 7989 washer include:
1. Material: These washers are constructed from stainless steel, a
versatile alloy that is composed primarily of iron, chromium, and nickel.
Stainless steel is highly resistant to rust, staining, and corrosion, making it
ideal for outdoor and marine applications.
2. Shape: DIN 7989 washers are generally flat, circular discs with a hole
in the center. The large outer diameter of these washers provides a broad
surface area for distributing loads evenly.
3. Function: They are commonly used in conjunction with bolts or screws
to provide additional support and distribute the load over a broader surface
area. This helps prevent deformation or damage to the connected materials.
4. Size: DIN 7989 washers come in various sizes and thicknesses to
accommodate different fastener dimensions and applications. Their size should be
chosen according to the specific requirements of the project.
5. Applications: These washers find application in a wide range of
industries, including construction, automotive, machinery, and general
manufacturing. They are especially useful in heavy-duty and structural
applications where stability and load distribution are critical.
6. Advantages: The stainless steel construction offers several
advantages, such as resistance to corrosion, ease of maintenance, and a polished
appearance. This makes them a preferred choice for outdoor and exposed
environments.
7. Compliance: DIN 7989 is a standard specification defined by the
Deutsches Institut für Normung (DIN), which is the German Institute for
Standardization. Compliance with this standard ensures that the washers meet
specific requirements for dimensions and performance.
Specifications | ASTM A193 / ASME SA 193 |
Standard | DIN, ISO ,JIS ,GB, IS, BS, ASTM and all International Standards |
Diameter | M2 to M100 |
Dimensions | DIN 7989, ASME B18.2.1, B18.3 |
Surface Coating | Black Oxide, Cadmium, Galvanized, Teflon, Xylan, Zinc, Others Upon Request |
Manufacturing Process | Wire Drawing, Cold Heading, Insert tapping, Heat Treatment, Surface Plating, Inspection, Packing. |
To preserve the high standards of our selection of industrial DIN Washer, we have always adhered to a systematic quality management process.
Our staff of experts is vibrant and talented, and they have always been our largest supporters and contributors to our success. Our vision is to create a world of DIN Washer.
DIN 7989 | ||||||||
Nominal size |
For Thread size |
Dimension (ID) |
Outside Diameter (OD) |
Thickness (h) |
||||
Min. | Max. | Min. | Max. | Nominal size | Min. | Max. | ||
10 | M10 | 11.00 | 11.70 | 18.70 | 20.00 | 8 | 6.80 | 9.20 |
12 | M12 | 13.50 | 14.20 | 22.70 | 24.00 | 8 | 6.80 | 9.20 |
16 | M16 | 17.50 | 18.20 | 28.70 | 30.00 | 8 | 6.80 | 9.20 |
20 | M20 | 22.00 | 22.84 | 35.40 | 37.00 | 8 | 6.80 | 9.20 |
22 | M22 | 24.00 | 24.84 | 39.40 | 39.00 | 8 | 6.80 | 9.20 |
24 | M24 | 26.00 | 26.84 | 42.40 | 44.00 | 8 | 6.80 | 9.20 |
27 | M27 | 30.00 | 30.84 | 48.40 | 50.00 | 8 | 6.80 | 9.20 |
30 | M30 | 33.00 | 34.00 | 54.10 | 56.00 | 8 | 6.80 | 9.20 |
Hardness testing to ISO 6508-1
Nut proof load testing to ISO 898-2
Suitability for preloading to EN 14399-2
Calibrated gauges and tools
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