DÜNA® Plastic Screw Combinations

Scope of Application

  • Flat roof
  • Fixing element for moisture-proof roof sheets
  • Renovation of bitumen water proofing with an additional heat insulation on trapezoidal steel sheets (0,6 –1,5 mm), on chipboards (min 22 mm) and on timber formwork (min 24 mm)

Technical Data

Plate: Ø 50 mm
Shaft: Ø 4.8 mm
Material plate: plastic
Material DBS: galvanised, highly corrosion-resistant
Installation depth trapezoidal steel sheets: 30 mm min
Installation depth wood: 25 mm min
Recommended: 7 or 8 pieces per m2


Screw in the plastic screw combination with a handheld screw-driver (depth stop) and a matching blade.
(Please note: the plate must be put in min one cm from membrane edge)

Get in touch with us: +49 (0)2903 97698 0

Order by E-Mail: sales@duena.de

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