DIN 9021
DIN 9021 is a withdrawn reference still used commercially. This sheet describes the commercial 100 HV series, not a declaration of conformity with ISO 7093-1.
DIN 9021
Commercial large washer · 100 HV
A 100 HV steel large washer providing a wider bearing surface under a bolt head or nut. This commercial series is distinct from ISO 7093-1: select the bore, outside diameter and thickness together with the finish.
ISO 7093-1
- Dimensional range
- M3–M36
- Series
- Large · without chamfer
- Configuration
- 100 HV
- References
- ISO 7093-1
Technical drawing and dimensional range
Tabulated commercial sizes M3–M36, with gaps in the series. Other bores, outside diameters and thicknesses on request; nominal M denotes the reference bolt size.
Dimensions in mm. Identification drawing, not a manufacturing drawing.
| M | d1 | d2 | s |
|---|---|---|---|
| 3 | 3.2 | 9 | 0.8 |
| 4 | 4.3 | 12 | 1 |
| 5 | 5.3 | 15 | 1.2 |
| 6 | 6.4 | 18 | 1.6 |
| 8 | 8.4 | 24 | 2 |
| 10 | 10.5 | 30 | 2.5 |
| 12 | 13 | 37 | 3 |
| 14 | 15 | 44 | 3 |
| 16 | 17 | 50 | 3 |
| 18 | 20 | 56 | 4 |
| 20 | 22 | 60 | 4 |
| 24 | 26 | 72 | 5 |
| 30 | 33 | 92 | 6 |
| 36 | 39 | 110 | 8 |
100 HV identifies the hardness of the commercial steel version described here. Dimensions are nominal catalogue values; tolerances and delivery requirements are agreed for the ordered specification. Do not automatically apply ISO 7093-1 tolerances.
Materials and property classes
| Material | Class / hardness | Configurable range | Supply |
|---|---|---|---|
| Steel to mechanical specification | 100 HV | M3–M36 | On request |
Other materials and specifications on request
For requirements beyond the tabulated combinations, enquire about aluminium, brass, nylon, duplex, superduplex or an ASTM specification. Alloy or grade, dimensions, mechanical requirements and finish are defined for the enquiry; the geometric reference does not automatically imply conformity with the product standard.
Enquire about another material or ASTM specification
Finishes and treatments
| Finish | Material | Class / hardness | M |
|---|---|---|---|
| Plain / as manufactured | Steel to mechanical specification | 100 HV | M3–M36 |
| Electroplated zinc | Steel to mechanical specification | 100 HV | M3–M36 |
Select the finish for the material/property-class combination. Hydrogen relief and lubrication are separate process requirements, not certificates and not implied by the coating name.
ISO, DIN and UNI: key differences
ISO 7093-1:2000
Related series, not an exact equivalent. In this commercial table M5 is 1.2 mm thick; M18/M20/M24 have 20/22/26 mm bores. Hardness and tolerances remain separate from the ISO series.
Documentation
Download Dueemme data sheet ↓| Document | Status |
|---|---|
| Declaration of conformity | Subject to order agreement |
| Material certificate | Subject to order agreement |
| EN 10204 2.2 test report | Subject to order agreement |
| EN 10204 3.1 inspection certificate | Subject to order agreement |
| Dimensional inspection report | Subject to order agreement |
| Coating report | Subject to order agreement |
| Other documentation | Subject to order agreement |
Batch documents are not automatically included: specify your requirements in the RFQ.
Mating components
Check bore size, bearing surface, hardness and materials throughout the connection.
100 HV washers are also used commercially with class 8.8 bolts and class 8 nuts. This is not a universal design rule: verify bearing pressure, support material and joint requirements.
Application sectors
The size you need, including custom specifications
Other diameters, lengths, materials and finishes can be assessed on request. For dedicated production, we agree geometry, requirements and minimum quantities with the customer.
Send your specification →Configure your enquiry
Selections follow the technical combinations in this data sheet. Quantities, delivery terms and documents will be agreed in the quotation.