Standard:EN14399-6
Description:
EN 14399-6 washers, also known as high tensile washers or structural washers, are designed to be used in conjunction with high-strength structural steel bolts. These washers conform to the specifications outlined in the EN 14399-6 standard, which establishes the dimensions and material requirements for this specific type of washer.
The size range of EN 14399-6 washers typically spans from M12 to M36, indicating that these washers can accommodate metric fasteners with diameters ranging from M12 to M36.
While the EN 14399-6 standard does not explicitly include provisions for specific coatings such as black oxide, it is possible to find EN 14399-6 washers with a black oxide coating. Black oxide is a surface treatment process that creates a black coating on the surface of a metal component, providing increased corrosion resistance and an appealing aesthetic. The black oxide coating can also help to reduce glare and improve lubricity.
When considering the use of EN 14399-6 washers with a black oxide coating, it is advisable to consult with suppliers or manufacturers who specialize in custom or specialized coatings. They can provide guidance on the availability and suitability of black oxide-coated EN 14399-6 washers for your specific application.
Keep in mind that while black oxide coating can enhance corrosion resistance, it may not offer the same level of protection as other specialized coatings like hot-dip galvanizing or Dacromet. Therefore, it is important to evaluate your project's environmental conditions and requirements to ensure that the black oxide coating will provide adequate corrosion protection.
| 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 |
Products pictures for Flat washers
