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Countersunk screw with hexalobular head

ISO 14581 steel 08.8 zinc plated
SCR-ISO14581-08.8-TX20-(A2K)-M4X12

Art.-no. 402314 12
EAN 4062856626274

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ISO 14581, steel FK08.8, zinc-plated, blue passivated (A2K)

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

Notice
  • 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
Product information

Datasheets(X)

Certificates/ Documents

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Thread type x nominal diameter (d1)

M4

Length (l1)

12 mm

Head diameter (dk )

8.4 mm

Head height (k1)

2.7 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

TX20

Thread type

Metric thread

Pitch

0.7 mm

Thread form

Standard metric thread

Product class

A

Art.-no.
Cust. Mat. No.

Hazardous Material

Product information

Datasheets()

Datasheets ()

CAD data  | 

Certificates/ Documents

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Technical information