DIN 986
Dimensions of the specified commercial selection do not replace a manufacturing drawing or the complete supply specification.
DIN 986
Nylon-domed prevailing-torque cap nut
A closed nylon dome and metal hexagon body combine end protection and a locking element.
- Dimensional range
- M5–M12
- Thread
- Metric · coarse pitch
- Configuration
- Nylon-domed prevailing-torque cap nut
Technical drawing and dimensional range
Reference sizes are listed in the table. Other diameters, pitches, materials and finishes are available on request, subject to an agreed supply specification.
Dimensions in mm. Identification drawing, not a manufacturing drawing.
| M | Pitch P | s | h | m |
|---|---|---|---|---|
| 5 | 0.8 | 8 | 10.5 | 4 |
| 6 | 1 | 10 | 12 | 5 |
| 8 | 1.25 | 13 | 14 | 6.4 |
| 10 | 1.5 | 17 | 18.1 | 7.8 |
| 12 | 1.75 | 19 | 22.5 | 9.6 |
Non-metallic insert: check temperature, chemicals and coating compatibility. Prevailing torque is not preload. Reuse and acceptance criteria must follow the manufacturer specification; no universal reuse count is assigned. Check bolt projection: it must not interfere with the cap. Watertightness is not claimed.
Materials and property classes
| Material | Class / hardness | Configurable range | Supply |
|---|---|---|---|
| Steel to mechanical specification | 8 | M5–M12 | 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 |
|---|---|---|---|
| Electroplated zinc | Steel to mechanical specification | 8 | M5–M12 |
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
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
Match nominal diameter, pitch, strength, material, finish and joint conditions.
Non-metallic insert: check temperature, chemicals and coating compatibility. Prevailing torque is not preload. Reuse and acceptance criteria must follow the manufacturer specification; no universal reuse count is assigned.
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.