DIN6916 HV300 Flat Steel Washer Black Oxide M12-M36 For Construction
Standard:DIN6916
Description:
A Black Oxide Flat Steel Washer is a type of washer made from steel that has undergone a black oxide treatment. This treatment involves a conversion coating that provides corrosion resistance and enhances the appearance of the steel washer.
A structural washer is a through hardened product, serving to prevent loosening under maximum torque, distributing the load over a greater area than the bolt and nut diameter, whilst helping to prevent galling and damaging the clamped surfaces. A small amount of lubrication is advised to help friction during the tightening process.
The DIN 6916 washer, also known as a flat steel washer, is a specific type of washer that conforms to the standards set by the Deutsches Institut für Normung (DIN), which is the German Institute for Standardization. It is commonly used in construction, machinery, and structural applications.
Black oxide finishes are often used for decorative purposes and to improve the wear resistance of the steel washers. These washers are commonly used in various industries, including automotive, construction, and general manufacturing, where a durable and aesthetically pleasing washer is 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 |
Inner diameter (max) |
Outside diameter (max) |
Outside diameter (min) |
Thickness |
Thickness |
Thickness (min) |
Inside chamfer |
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 |
Application: Due to their larger size and load-bearing capabilities, DIN 6916 washers are commonly used in heavy-duty applications where high-strength connections are required. They can be used in structural steelwork, steel construction, bridge building, and other applications that involve high loads and critical connections.
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