Headed bolts, headed studs

Headed bolts are made of round steel or reinforcing steel bars. The bars are headed at one end. A thread is rolled on or cut at the other end of the bar. The end can also be prepared for welding on of, e.g., an anchor plate. Headed fasteners are embedded in concrete and anchored in the concrete through form-fitting of the bolt heads. Structural steel members or precast reinforced concrete members can be connected to the threads protruding from the concrete. Additional structural steel members can be welded to the anchor plates, which are usually embedded in the concrete flush with the surface.

Regulatory framework

DIBt grants national technical approvals (abZ) for headed bolts and studs. European Technical Assessments (ETAs) can also be issued.

Furthermore, DIBt grants general construction technique permits (aBG) for construction techniques comprising headed bolts and studs for which there are no conclusive technical rules.

Please also refer to the applicable design and execution rules, cf., in particular, MVV TB, Part A 1 and Annex 2, as well as the following information and technical rules.

Technical rules

DIN EN 1992-4:2019-04 Eurocode 2 - Design of concrete structures - Part 4: Design of fastenings for use in concrete

DIN EN 1992-4/NA:2019-04 National Annex - Nationally determined parameters - Eurocode 2: Design of concrete structures - Part 4: Design of fastenings for use in concrete

EAD 330084-00-0601 Steel plate with cast-in anchor (18 pages)

Version: January 2016; OJEU 2016/C 378/08; EOTA

EAD 330924-00-0601 Cast-in anchor bolt of ribbed reinforcing steel (22 pages)

Version: January 2018; OJEU 2018/C 049/04; EOTA

Application forms

National procedure

A national technical approval (abZ) and/or oder general construction technique permit (aBG) is granted upon application (see Model Building Code (MBO), Sections 16a(2) and18(2) and (4)). This also applies to amendments and supplements to, or renewals of existing approvals and/or construction technique permits.

No formal requirements apply. The following information is needed: name and address of the applicant, description of the product and/or construction technique and its field of use or application, type of decision required (new decision, amendment or supplement to, or renewal of, an existing decision).

Please feel free to use the template below.

Application for a national technical approval and/or construction technique permit (3 pages)

Version: January 2018; Application form

Application for amendment / supplementation / renewal of a national technical approval and/or construction technique permit (4 pages)

Version: January 2018; Application form

Guideline: How to provide drawings for national technical approvals and general construction technique permits (5 pages)

Version: July 2017

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.

Form for requesting a European Technical Assessment (ETA) (2 pages)

Last updated: 16 June 2022

  • abZ/aBG
  • ETA
  • Z = new decision | E = supplement | Ä = amendment | V = renewal | G = valid until
    Subject concerned Applicant Decision no. Validity
    from / to
    Halfen - Ankerbolzen HAB MH zur Verankerung von Stützen

    Leviat GmbH

    Liebigstraße 14

    40764 Langenfeld

    Z-21.5-1758 Z: 02.12.2021
    G: 24.10.2023
    Halfen - Ankerbolzen HAB H zur Verankerung von Stützen

    Leviat GmbH

    Liebigstraße 14

    40764 Langenfeld

    Z-21.5-1761 Z: 02.12.2021
    G: 24.10.2023
    PFEIFER-Ankerbolzen PGS/G1-DK

    Pfeifer Seil- und Hebetechnik GmbH & Co. KG

    Dr.-Karl-Lenz-Straße 66

    87700 Memmingen

    Z-21.5-1877 Z: 28.01.2019
    G: 29.01.2024
    Kleymann Proxxter Gewindeanker zur Verankerung von Stahlstützen an Fundamenten

    GTK Gewindetechnik Kleymann GmbH & Co. KG

    Hobelstraße 1

    49757 Werlte

    Z-21.5-2133 Z: 25.11.2021
    G: 25.11.2026
    PFEIFER-Ankerbolzen PGS G2-K / G3-K / G4-K zur Verankerung in Beton

    Pfeifer Seil- und Hebetechnik GmbH

    Dr.-Karl-Lenz-Str. 66

    87700 Memmingen

    Z-21.5-2140 Z: 17.03.2022
    G: 17.03.2027
  • Subject concerned Applicant Decision no. Issued on
    PEIKKO HPM-L anchor bolt

    PEIKKO GROUP CORPORATION

    Voimakatu 3

    15101 Lahti

    FINNLAND

    ETA-02/0006 25.07.2022
    PFEIFER anchor bolt PGS/G1-K

    Pfeifer Seil- und Hebetechnik GmbH

    Dr.-Karl-Lenz-Str. 66

    87700 Memmingen

    DEUTSCHLAND

    ETA-16/0868 28.05.2020
    Peikko PPM L Anchor Bolts

    PEIKKO GROUP CORPORATION

    Voimakatu 3

    15101 Lahti

    FINNLAND

    ETA-19/0814 17.08.2022

Beatrix Wittstock
Head of Section – Fastening and Reinforcing Techniques, Stairs

Phone +49 30 78730-267
Email bwi(at)dibt(.)de

Legal reference documents

Testing, certification, inspection