4.5 x 70mm TX20 Hapatec Wood Screw Black Coated (box of 200)

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Product Details
  • For fixing black facade boards


The Hapatec screw made of hardened stainless steel is a panel fastener, especially for hardwood. The screw has a scraper groove at the screw tip, milling ribs over the thread and a decorative head. The Hapatec is also available in antique and black.


Martensitic stainless steel 1.4006 (C1)
(stainless steel according to DIN EN 10088)

  • High strength
    • 50% higher breaking torque than the austenitic stainless steel A2 and A4
    • Hardened by heat treatment
  • Can be used in service classes 1 to 3 according to DIN EN 1995 (Eurocode 5)
  • Limited rust resistance
  • Not acid resistant
    • Not suitable for woods with a lot of tannin such as coumarú, oak, merbau, robinia etc.
  • Not suitable for use in aggressive, salty or chlorine-containing environments
  • Magnetizable


  • Milling ribs facilitate countersinking in all types of wood
  • The special screw geometry reduces the risk of the wood splitting
    • However, pre-drilling is particularly recommended for hardwoods in terrace or facade construction!
  • Corrosion-resistant up to and including usage class 3 - "freely weathered structures" according to DIN EN 1995 (Eurocode 5)
  • National and international approval
  • No hammering of the screws when screwing in thanks to the TX drive


  • European Technical Assessment ETA-11/0024
  • Self-drilling screws as wood fasteners
  • Hapatec screws as wood fasteners
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