Standard:DIN6340
Description:
The DIN 6340 washer, also known as a hardened steel washer, is a type of washer that conforms to the DIN 6340 standard. It is commonly used in various industrial applications to distribute the load of a threaded fastener, such as a bolt or a nut, over a larger surface area.
The DIN 6340 washer is made from hardened steel, which provides enhanced strength and durability. It is available in various sizes ranging from M6 to M30, indicating the metric thread size it is designed to be used with. The "M" stands for metric, and the number following it represents the nominal diameter of the fastener.
In terms of surface finishes, DIN 6340 washers can be found in two main variants: plain and Dacromet.
1.Plain Finish: Plain finish washers have a basic, uncoated surface. They are typically used in applications where corrosion resistance is not a primary concern, such as in dry environments or when the fasteners are protected by other means (e.g., coatings, lubricants).
2.Dacromet Coating: Dacromet is a type of coating that provides corrosion resistance to the washer. It is a thin, non-electrolytic coating that offers excellent protection against rust and other forms of corrosion. Dacromet-coated washers are commonly used in applications where exposure to moisture, chemicals, or other corrosive elements is expected.
It's worth noting that DIN 6340 is a German standard, and the term "DIN" stands for "Deutsches Institut für Normung," which translates to "German Institute for Standardization." The DIN standards are widely adopted and used as references for various industrial components and processes.
When selecting a washer, it's important to consider the specific requirements of your application, such as the load, environmental conditions, and the type of fastener being used. Consulting the relevant engineering specifications and guidelines can help ensure the appropriate washer is chosen for your specific needs.
| Material | 45#/40CR |
| Size | M6-M30 |
| Finish | Plain/black/ZINC/HDG/Dacromet/Mechanical Galvanized |
| Hardness | HV300/HRC35-45 |
| Marking | can be Customized |
| Application | Constrution/Wind turbines/railway line |
| Packing | Carton+ pallet; we can pack washers as your requirements |
| Terms | FOB+shanghai/ningbo |
| Delivery time | 30-70days |
| Size | Inner diameter(min) | Inner diameter(max) | Outside diameter(max) | Outside diameter(min) | Thinkness |
|---|---|---|---|---|---|
| M6 | 6.4 | 6.75 | 17 | 16.57 | 3 |
| M8 | 8.4 | 8.76 | 23 | 22.48 | 4 |
| M10 | 10.5 | 10.93 | 28 | 27.48 | 4 |
| M12 | 13 | 13.43 | 35 | 34.38 | 5 |
| M16 | 17 | 17.43 | 45 | 44.38 | 6 |
| M20 | 21 | 21.52 | 50 | 49.38 | 6 |
| M24 | 25 | 25.52 | 60 | 59.26 | 8 |
| M30 | 31 | 31.62 | 68 | 67.26 | 10 |
Products pictures for Flat washers
