Standard:DIN6916
Description:
DIN 6916 washers, also known as heavy washers, are designed to provide increased bearing surface and load distribution when used with high-strength structural bolts. The parameters you mentioned, M12-M36, indicate that these washers are available in metric sizes ranging from M12 to M36.
When it comes to the surface finish options for DIN 6916 washers, you have two choices: plain or Dacromet.
1.Plain: Plain washers refer to washers without any additional coating or finish. They are typically made of carbon steel and do not have any corrosion protection. Plain washers are suitable for use in indoor or dry environments where corrosion is not a concern. However, if used in outdoor or corrosive environments, they may rust over time.
2.Dacromet: Dacromet is a brand name for a type of coating that provides excellent corrosion resistance. It is a thin, inorganic coating applied to the surface of the washers through a dip-spin process. Dacromet coatings offer high resistance to corrosion, salt spray, and various chemicals. These coatings are commonly used in applications where washers are exposed to harsh environments or where long-term corrosion protection is required.
In summary, DIN 6916 heavy washers are available in metric sizes ranging from M12 to M36. They can be obtained with either a plain finish, which provides no corrosion protection, or a Dacromet coating, which offers excellent corrosion resistance. The choice of finish depends on the specific application and the level of corrosion protection required.
| 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
