Standard:EN14399-6
Description:
The EN 14399-6 washer, also known as a structural steel washer, is a type of washer that conforms to the EN 14399-6 standard. These washers are commonly used in structural steel connections and preloaded bolt assemblies.
The M12-M36 size range indicates that these washers are suitable for use with bolts or threaded fasteners ranging from M12 to M36 in diameter.
Regarding the surface finish, EN 14399-6 washers can be available with a black oxide finish. Black oxide is a conversion coating that forms a thin layer of black oxide on the surface of the washer. This finish provides some corrosion resistance and also offers an attractive black appearance.
The black oxide finish helps to improve the durability and resistance to rust of the washer, making it suitable for applications where moderate corrosion resistance is required.
The choice of black oxide finish for EN 14399-6 washers can provide a combination of functionality and aesthetics, particularly in applications where both corrosion resistance and visual appeal are important factors. However, please note that black oxide may not provide the same level of corrosion protection as zinc plating or hot-dip galvanizing. If you require higher levels of corrosion resistance, zinc-plated or HDG options may be more suitable for your specific application.
| Material | 45#/40CR |
| Size | M12-M36 |
| 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) |
Thickness (nominal size) |
Thickness (max) |
Thickness (min) |
Inside chamfer (min) |
Inside chamfer (max) |
External chamfer |
|---|---|---|---|---|---|---|---|---|---|---|
| M12 | 13 | 13.27 | 24 | 23.48 | 3 | 3.3 | 2.7 | 1.6 | 1.9 | 0.5 |
| M16 | 17 | 17.27 | 30 | 29.48 | 4 | 4.3 | 3.7 | 1.6 | 1.9 | 1 |
| M20 | 21 | 21.33 | 37 | 36.38 | 4 | 4.3 | 3.7 | 2 | 2.5 | 1 |
| M22 | 23 | 23.33 | 39 | 38.38 | 4 | 4.3 | 3.7 | 2 | 2.5 | 1 |
| M24 | 25 | 25.33 | 44 | 43.38 | 4 | 4.3 | 3.7 | 2 | 2.5 | 1 |
| M27 | 28 | 28.52 | 50 | 49 | 5 | 5.6 | 4.4 | 2.5 | 3 | 1 |
| M30 | 31 | 31.62 |
56 |
54.8 | 5 | 5.6 | 4.4 | 2.5 | 3 | 1 |
|
M36 |
37 | 37.62 | 66 | 64.8 | 6 | 6.6 | 5.4 | 3 | 3.5 | 1.5 |
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