Screws for timber construction
In timber construction, screws are used to permanently connect timber elements to other elements or to reinforce timber elements. In this work area, you will also find threaded rods and screws for external thermal insulation composite systems (ETICS).
Regulatory framework
DIBt grants national technical approvals (abZ) for screws that are not covered by the relevant harmonised standard, DIN EN 14592.
European Technical Assessments (ETAs) can be issued for screws that are not (fully) covered by DIN EN 14592.
For applications comprising screws for timber construction, DIBt grants general construction technique permits (aBG) when there is no conclusive technical rule for design and execution.
National procedure
To prepare an abZ/aBG for your construction product, we need an application from you. We recommend that you contact us prior to doing so. Feel free to send us your enquiry informally via email to dibt(at)dibt(.)de or to the competent technical contact listed in the top right.
For a first assessment, please send us the following information:
- Description of the construction product and its intended field of use
- e.g. material, configuration, number of sizes, variants, dimensions
- e.g. use in walls, ceilings, interior construction, building services
- Description of the construction technique and its field of application
- e.g. design of walls, ceilings, elements, etc., and interaction of components
- e.g. application in foundation engineering, reinforced concrete construction, building insulation; as load-bearing or non-load-bearing component; under static and quasi-static loading; fire exposure; other environmental exposures
- Information regarding impact on regulatory concerns
- in particular structural integrity, fire protection, health and environment protection, sound insulation as well as thermal performance
- Explanation of need for an abZ/aBG
- Do you significantly deviate from the Technical Building Rules?
- Or do neither Technical Building Rules nor generally recognised technical rules exist?
- Contact details
- preferably email address and/or telephone number, as well as name, organisation/company, and postal address
We will then contact you to clarify the next steps.
If you already hold a DIBt approval and/or construction technique permit and wish to apply for an amendment, supplement, or renewal, please use the form provided below.
- pdf-Datei Application for amendment / supplementation / renewal of a national technical approval and/or construction technique permit (4 pages ) Last updated: 10 April 2024; Application form
European Technical Assessment (ETA)
To start the ETA procedure, please submit the form below. We will then check if the prerequisites for issuing an ETA are met, i.e., in particular, if the product is not fully covered by an existing harmonised standard. If the prerequisites are met, we will check whether a European Assessment Document (EAD) covering the requested assessment scope already exists or still needs to be developed. If an EAD needs to be developed or amended, a complete technical file needs to be established before the procedure can begin.
- pdf-Datei Form for requesting a European Technical Assessment (ETA) (2 pages ) Last updated: 11 March 2025
| Subject concerned | Applicant | Decision no. | Issued on |
|---|---|---|---|
| REISSER-screws | REISSER-Schraubentechnik GmbH Fritz-Müller-Straße 10 74653 Ingelfingen-Criesbach DEUTSCHLAND | ETA-11/0106 |
11.09.2024 |
| Würth self-tapping screws | Adolf Würth GmbH & Co. KG Reinhold-Würth-Straße 12-17 74653 Künzelsau DEUTSCHLAND | ETA-11/0190 |
22.01.2026 |
| S+P screws | Schäfer + Peters GmbH Zeilbaumweg 32 74613 Öhringen DEUTSCHLAND | ETA-11/0283 |
06.06.2023 |
| HECO-FIX-plus, HECO-TOPIX, HECO-TOPIX-T and HECO-TOPIX-CC screws | HECO-Schrauben GmbH & Co. KG Dr.-Kurt-Steim-Straße 28 78713 Schramberg DEUTSCHLAND | ETA-11/0284 |
28.03.2019 |
| PanelFix screws | BFU Fixing GmbH Kirchgärten 4 74626 Bretzfeld DEUTSCHLAND | ETA-11/0389 |
29.06.2021 |
| HECO-UNIX-plus and HECO-UNIX-top screws | HECO-Schrauben GmbH & Co. KG Dr.-Kurt-Steim-Straße 28 78713 Schramberg DEUTSCHLAND | ETA-11/0452 |
23.05.2016 |
| Screws Twin UD and PIR-FIX | SFS Group Schweiz AG Rosenbergsaustrasse 10 CH - 9435 Heerbrugg SCHWEIZ | ETA-12/0038 |
01.06.2022 |
| SFS self-tapping screws WR | SFS Group Schweiz AG Rosenbergsaustrasse 10 CH - 9435 Heerbrugg SCHWEIZ | ETA-12/0062 |
01.06.2022 |
| SFS Self-tapping Screws WT | SFS Group Schweiz AG Rosenbergsaustrasse 10 CH - 9435 Heerbrugg SCHWEIZ | ETA-12/0063 |
01.06.2022 |
| CELO screws VELOX | CELO S.A. Poligono Industrial Pla de la Bruguera Rosselló, 7 08211 CASTELLAR DEL VALLÈS (BARCELONA) SPANIEN | ETA-12/0198 |
19.06.2017 |
| WBS - Wood Building Screws und CPS - Chipboard Screws | Din Ling GmbH Puntigamer Straße 127 8055 GRAZ ÖSTERREICH | ETA-12/0276 |
16.02.2017 |
| EASYfast and EASYtop screws | Berner Omnichannel Trading Holding SE Bernerstraße 6 74653 Künzelsau DEUTSCHLAND | ETA-12/0280 |
19.09.2025 |
| BM Quick Drill, BM Quick Drill +, BM Quick Drill II, BM Quick Drill III, BM DT Quick Drill and BM FT Quick Drill screws | Bi-Mirth Corporation No. 3, Alley 7, Lane 96, Ping Der Road TAI-CHUNG TAIWAN R.O.C | ETA-12/0471 |
07.07.2025 |
| BTI DoTec and Drilltec screws | BTI Befestigungstechnik GmbH & Co. KG Salzstraße 51 74653 Ingelfingen DEUTSCHLAND | ETA-12/0521 |
13.12.2022 |
| E-Jet screws | Verbindungselemente Engel GmbH Weltestraße 2+4 88250 Weingarten DEUTSCHLAND | ETA-13/0536 |
20.02.2018 |
| TOB screws | TOBSTEEL GmbH Rudolf-Diesel-Straße 8 74613 Öhringen DEUTSCHLAND | ETA-13/0816 |
18.10.2023 |
| AMBFAST europe screws | AMBROVIT S.P.A. via Giulio Natta 29 27026 GARLASCO (PV) ITALIEN | ETA-16/0381 |
04.07.2024 |
| CELO screws BMax, BMax-D and BMax-F | CELO S.A. Poligono Industrial Pla de la Bruguera Rosselló, 7 08211 CASTELLAR DEL VALLÈS (BARCELONA) SPANIEN | ETA-16/0770 |
17.02.2017 |
| BeFIX, BeFIX D & BeFIX V screws | Joh. Friedrich Behrens AG Bogenstraße 43-45 22926 Ahrensburg DEUTSCHLAND | ETA-16/0902 |
17.03.2017 |
| Rawlplug Wood Construction Screws | RAWLPLUG S.A. Kwidzynska 6 51-416 WROCLAW POLEN | ETA-17/0023 |
17.03.2017 |
| Timberman, Glaro Disc, Glaro Turbo and Glaro Kombi Screws | Glaromat AG Fennen 3 8867 NIEDERURNEN SCHWEIZ | ETA-17/0290 |
13.04.2018 |
| blaugelb screws | Meesenburg Großhandel KG Höfinger Straße 16 70499 Stuttgart DEUTSCHLAND | ETA-17/0605 |
28.08.2017 |
| VKING screws | VISWOOD Rue de la Roseliere 42450 Sury le Comtal FRANKREICH | ETA-17/0609 |
28.08.2017 |
| KLIMAS screws | Wkret-met Sp. z o.o. Kuznica Kiedrzynska ul. Wincentego Witosa 170/176 42-233 MYKANÓW POLEN | ETA-18/0817 |
07.06.2023 |
| WASI self-tapping screws | WASI GmbH WASI-Straße 1 42287 Wuppertal DEUTSCHLAND | ETA-19/0436 |
28.08.2019 |
| HASO-Screws | Josef Hansen GmbH & Co. KG Dellenfeld 4 42653 Solingen DEUTSCHLAND | ETA-19/0594 |
02.12.2019 |
| ABC-Wood Construction Screws | ABC Verbindungstechnik GmbH Kölner Straße 71-77 58256 Ennepetal DEUTSCHLAND | ETA-20/0385 |
29.06.2021 |
| JD Plus Construction Screws | Joseph Dresselhaus GmbH & Co. KG Zeppelinstraße 13 32051 Herford DEUTSCHLAND | ETA-20/0833 |
27.11.2020 |
| Wood Construction Screws RN HBS-TG and RN HBS-VG | F. REYHER Nchfg. GmbH & Co. KG Haferweg 1 22769 Hamburg DEUTSCHLAND | ETA-20/0947 |
30.04.2021 |
| E-JET X Screws | Verbindungselemente Engel GmbH Weltestraße 2+4 88250 Weingarten DEUTSCHLAND | ETA-21/0055 |
11.11.2024 |
| FUSA-fast / F+S PRO CPS Chipboard Screws and WBS Woodbuilding Screws | Fuchs + Sanders Schrauben-Großhandels-GmbH + Co.KG Im Westerfeld 1 49504 Lotte DEUTSCHLAND | ETA-21/0826 |
14.10.2021 |
| PROFIX screws | PROFIX AG Kanalstraße 23 4415 LAUSEN SCHWEIZ | ETA-21/1035 |
27.01.2022 |
| BORGH TAC VS-Schroeven and TAC VS-Dakschroeven | Borgh B.V. De Steiger 71-73 1351 AE ALMERE NIEDERLANDE | ETA-22/0887 |
24.02.2023 |
| FISHBULL Holzbauschrauben mit Senkkopf and Holzbauschrauben mit Tellerkopf | FISHBULL Franz Fischer SE & Co. KG Liebigstraße 7 96465 Neustadt bei Coburg | ETA-23/0376 |
14.11.2024 |
| TOX TIMBR | TOX-Dübel-Technik GmbH Brunnenstraße 31 72505 Krauchenwies-Ablach DEUTSCHLAND | ETA-23/0657 |
21.08.2023 |
| blaugelb screws | Meesenburg KG Westerallee 162 24941 Flensburg | ETA-23/1007 |
15.01.2024 |
| RECA wood screws | Kellner & Kunz AG Boschstraße 37 A-4600 Wels ÖSTERREICH | ETA-24/0273 |
23.10.2024 |
| EASYtimber screws | Berner Omnichannel Trading Holding SE Bernerstraße 6 74653 Künzelsau | ETA-24/0475 |
26.06.2024 |
| PanelTec screws | INTRA-TEC GmbH Stegerwaldstraße 1 51427 Bergisch-Gladbach | ETA-24/0620 |
02.07.2024 |
| HECO-WR (HWR) | HECO-Schrauben GmbH & Co. KG Dr.-Kurt-Steim-Straße 28 78713 Schramberg | ETA-24/0624 |
24.07.2024 |
| RECA Timber Screw | RECA NORM GmbH Am Wasserturm 4 74635 Kupferzell | ETA-25/0640 |
17.07.2025 |