Poeliers mushroom head screw
Geometry, executions, materials and finishes in one data sheet. Required length and supply requirements are defined in the quotation request.
POELIERS - NFE 27-128
- Dimensional reference
- Related NFE 27-128
- Pitch
- Coarse
- Drive
- Single or double slot
- Units
- mm

Representative geometry photograph. Material and finish are specified separately.
Technical drawing

Reference drawing from the Berardi catalogue. Dimensions in mm; not to scale.
- d
- Nominal thread
- dk min.
- Minimum head diameter
- dk max.
- Maximum head diameter
- k max.
- Maximum head height
Reference geometry
Dimensions in mm. Supply lengths are not listed: specify the required length in your enquiry.
| d | dk min. | dk max. | k max. |
|---|---|---|---|
| M4 | 9.5 | 9.8 | 2.2 |
| M5 | 11.8 | 12 | 2.7 |
| M6 | 13.8 | 14 | 3.3 |
| M8 | 18.3 | 18.7 | 4.4 |
Geometric dimensions from the VIPA NFE 27-128 data sheet, cross-checked against Berardi maximum dimensions. The drawing shows the double-slot version; the single-slot execution remains in the same family and must be specified in the enquiry. Always check the head profile and supplied execution.
Materials, grades, finishes and treatments
| Material | Class / execution | Finish |
|---|---|---|
| Steel | 4.8 | Uncoated; clear zinc plated; yellow zinc plated; black zinc plated |
| Stainless steel A2 - single-slot execution | To be specified | To be specified |
Material, class, tolerance and finish are confirmed in the quotation. Dimensional rows do not indicate availability by material; not all combinations are implied.
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.
Standards, executions and application
The wide head provides an extended bearing area, which must be checked against the component surface. VIPA explicitly distinguishes the single-slot stainless execution; Berardi also lists a double-slot steel version. Supplier commercial descriptions may refer to NFE 25-129 or NFE 27-128: agree the drawing rather than assuming equivalence. Listed materials do not confirm availability of individual sizes.
Configure your enquiry
Select the diameter and enter the required length in the specifications, together with material, finish and quantity. Dueemme will confirm supply in its quotation.
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.
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