Standard:DIN6916
Description:
The DIN 6916 washer, or hardened steel washer, is typically available with different surface coatings, including zinc plating and hot-dip galvanizing (HDG).
1.Zinc Plated: Zinc plating involves applying a thin layer of zinc to the surface of the washer. This coating provides some level of corrosion resistance and helps protect the underlying steel from rusting. Zinc-plated washers are commonly used in indoor applications or environments where exposure to moisture or corrosive substances is limited. They are not recommended for prolonged outdoor use or in highly corrosive environments.
2.Hot-Dip Galvanized (HDG): Hot-dip galvanizing is a process where the washer is completely immersed in a bath of molten zinc. This results in a thick and durable zinc coating that provides excellent corrosion resistance. HDG-coated washers are commonly used in outdoor applications, especially in construction, where they are exposed to harsh weather conditions, moisture, and corrosive elements. They offer superior protection against rust and have a longer lifespan compared to zinc-plated or plain finish washers.
When selecting between zinc-plated and HDG-coated DIN 6916 washers, consider the environmental conditions and the level of corrosion protection required. If your application involves outdoor use or exposure to moisture, chemicals, or corrosive substances, HDG-coated washers would be a more suitable choice. For indoor or less demanding environments, zinc-plated washers may suffice.
It's important to note that regardless of the coating, DIN 6916 washers in the M12 to M36 size range are made from hardened steel and provide high-strength and load-bearing capabilities, ensuring reliable and secure fastenings in structural or heavy-duty applications.
| 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
