DIN 562
DIN 562 identifies thin square nuts. The table is a commercial selection reference; confirm tolerances, conformity and mechanical requirements for the requested item.
DIN 562
Thin square nut
A low-profile square nut for housings with limited axial space. Four flat sides allow location in a dedicated pocket; thread, width and height define the required configuration.
UNI 5596
- Dimensional range
- M3–M10
- Thread
- Metric · coarse pitch
- Configuration
- Square · thin
- References
- UNI 5596
Technical drawing and dimensional range
Selected M3, M4, M5, M6, M8 and M10 in A2 stainless; A4 configured for M6 and M8. Other diameters and materials on request. Dimensions follow the DIN column of the technical reference, separately from UNI dimensions.
Dimensions in mm. Identification drawing, not a manufacturing drawing.
| M | Pitch P | s | m | e | kg / 1,000 pcs |
|---|---|---|---|---|---|
| 3 | 0.5 | 5.5 | 1.8 | 7 | ND |
| 4 | 0.7 | 7 | 2.2 | 8.9 | ND |
| 5 | 0.8 | 8 | 2.7 | 10.2 | ND |
| 6 | 1 | 10 | 3.2 | 12.7 | ND |
| 8 | 1.25 | 13 | 4 | 16.5 | ND |
| 10 | 1.5 | 16 | 5 | 20.2 | ND |
Weight for each size: ND. No weight is transferred from a UNI geometry or another material.
Reduced height limits effective thread engagement. Design the joint for its load and the nut specification; the square shape is not a self-locking feature.
Materials and property classes
| Material | Class / hardness | Configurable range | Supply |
|---|---|---|---|
| A2 stainless steel | To be specified | M3–M10 | On request |
| A4 stainless steel | To be specified | M6–M8 | On request |
Other materials and specifications on request
Other materials, threads and geometries can be assessed on request. For substantial quantities we can review dedicated production, agreeing drawing, requirements and minimum batch size.
Enquire about another material or ASTM specification
Finishes and treatments
| Finish | Material | Class / hardness | M |
|---|---|---|---|
| Plain / as manufactured | A2 stainless steel | To be specified | M3–M10 |
| Plain / as manufactured | A4 stainless steel | To be specified | M6–M8 |
Stainless configurations have no additional coating declared. Agree surface finish, cleaning and any required passivation.
ISO, DIN and UNI: key differences
UNI 5596
Related reference with differences: heights differ for M3–M6; for M10 the listed width is 17 mm UNI versus 16 mm DIN. Do not transfer dimensions between the two 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
Compare related nuts for shape and envelope; they are not automatically interchangeable substitutes.
A2 and A4 identify the stainless steel group. Property classes 50, 70 or 80 are not assigned automatically: define mechanical requirements and documentation for supply. Do not replace a regular nut with a thin nut without checking the joint.
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.