ISO 4035:2023
Main standard for the coarse-pitch dimensions shown here. The reduced height requires style-0 property classes and checks.
A compact axial profile for adjustment and space-limited connections. When used as a jam nut, pair it with a regular or high nut; it does not provide the loadability of a full-height nut on its own.
DIN 439 B

The thin profile has reduced loadability. Class 04 is not class 4, 4.8 or 8: retain the leading zero. Jam-nut use requires an appropriate joint arrangement and a defined tightening procedure.
ISO 4035:2023 dimensions from M5 to M39. Material/finish selection is limited to verified combinations; enquire about other diameters, pitches and configurations.

Dimensions in mm. Identification drawing, not a manufacturing drawing.
| M | Pitch P | s | m min. | m max. |
|---|---|---|---|---|
| 5 | 0.8 | 8 | 2.45 | 2.7 |
| 6 | 1 | 10 | 2.9 | 3.2 |
| 7 | 1 | 11 | 3.4 | 3.7 |
| 8 | 1.25 | 13 | 3.7 | 4 |
| 10 | 1.5 | 16 | 4.7 | 5 |
| 12 | 1.75 | 18 | 5.7 | 6 |
| 14 | 2 | 21 | 6.42 | 7 |
| 16 | 2 | 24 | 7.42 | 8 |
| 18 | 2.5 | 27 | 8.42 | 9 |
| 20 | 2.5 | 30 | 9.1 | 10 |
| 22 | 2.5 | 34 | 9.9 | 11 |
| 24 | 3 | 36 | 10.9 | 12 |
| 27 | 3 | 41 | 12.4 | 13.5 |
| 30 | 3.5 | 46 | 13.9 | 15 |
| 33 | 3.5 | 50 | 15.4 | 16.5 |
| 36 | 4 | 55 | 16.9 | 18 |
| 39 | 4 | 60 | 18.2 | 19.5 |
The thin profile has reduced loadability. Class 04 is not class 4, 4.8 or 8: retain the leading zero. Jam-nut use requires an appropriate joint arrangement and a defined tightening procedure.
| Material | Class / hardness | Configurable range | Supply |
|---|---|---|---|
| Steel to mechanical specification | 04 | M6, M8, M10, M12, M16, M20 | 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.
| Finish | Material | Class / hardness | M |
|---|---|---|---|
| Black oxide | Steel to mechanical specification | 04 | M6, M8, M10, M12, M16, M20 |
| Zinc plated, blue passivated | Steel to mechanical specification | 04 | M6, M8, M10, M12, M16, M20 |
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.
Main standard for the coarse-pitch dimensions shown here. The reduced height requires style-0 property classes and checks.
DIN 439 B is a related historical reference: widths across flats and heights can differ. It is not an absolute equivalent. ISO 8675 covers fine pitch instead.
| 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.
For jam-nut applications, assess the regular or high nut together with the threaded component.
Do not automatically apply the bolt 8.8 / nut 8 pairing to this nut. Assess the connection using effective nut height and thread-stripping resistance.
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 →Selections follow the technical combinations in this data sheet. Quantities, delivery terms and documents will be agreed in the quotation.