Drilling screw C1


  • Diameter: 4.2 mm
  • Head diameter: 6.8 mm
  • Head height: 2.3 mm
  • Head type: Countersunk head
  • Material: Stainless steel
  • C1
  • Internal drive: H2
  • Drive type: H

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Countersunk head with PH drive


  • Optimal drive for applications in metal provides excellent processing results and saves time

Self-tapping screw thread with drill tip


  • Optimal processing with aluminium substructure up to 6 mm, no pre-drilling required

Screw length adapted for each application


  • Easy to select due to adaptation to the two most frequent applications (plastic clip with 38 mm and metal clip with 19 mm)


The drilling screw is the perfect solution for a fast and secure connection – especially in terrace construction. Its sharp drill tip makes it easy to drill into the plank and the underlying substructure. The steel grade C1 (hardened) has the optimum hardness for processing in aluminium and WPC substructures.
It is also the perfect screw for processing SWG WPC plank connectors, as both are optimally matched to each other.

  • Diameter: 4.2 mm
  • Head diameter: 6.8 mm
  • Head height: 2.3 mm
  • Head type: Countersunk head
  • Material: Stainless steel
  • C1
  • Internal drive: H2
  • Drive type: H