Countersunk screw with hexalobular head
ISO 14581 steel 08.8 zinc plated
SCR-CS-ISO14581-08.8-TX8-(A2K)-M2,5X8
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Increase in assembly productivity
When elements are joined using hexalobular (TX) fasteners, the force is transmitted over a large surface area across the flanks of the drive rather than being centred on one point, as is the case with hexagon socket drives, for example. This has a number of advantages:
- Reduced tool wear
- Tool does not slip because force is distributed optimally
- No damage to surface coating
- No wobbling
- Screw locates securely
Hexalobular drives must comply with DIN EN ISO 10664
- As a result, connection elements with hexalobular heads are standardised and can be used all over the world
- Head dimensions in ISO 14581 countersunk screws are gauged in accordance with ISO 7721
- Some screws with short dimensions are threaded up to the head, see also ISO 14581
- Countersinks for screw heads in accordance with ISO 14581 must comply with ISO 15065
Datasheets(X)
 | |
Thread type x nominal diameter (d1) | M2.5 |
Length (l1) | 8 mm |
Head diameter (dk ) | 4.7 mm |
Head height (k1) | 1.5 mm |
Standards | ISO 14581 |
Material | Steel |
Property class | 08.8 |
Surface | Zinc plated |
RoHS-compliant | Yes |
Head type | Countersunk head |
Drive type | Internal hexalobular |
Internal drive | TX8 |
Thread type | Metric thread |
Pitch | 0.45 mm |
Thread form | Standard metric thread |
Product class | A |
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