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Anchor bolt steels

Anchor bolt steels are manufactured in hot rolling mills (by quenching, cold-drawing or additional tempering, alone or in combination) in straight lengths. The steel rod surface is ribbed or threaded.

The anchor bolt acts as a tension member, resisting the forces exerted by the tie anchor locks at either end. In scaffolds, the anchor bolts are used temporarily.

Anchor bolt steels are suitable for use as anchor bolts for formwork ties (DIN 18216) and as components of Scaffold anchors.

Regulatory framework

DIBt grants national technical approvals (abZ) for anchor bolt steels.

Please also note the applicable design and execution rules, cf. in particular MVV TB, Part A 1.

DIN 18216:1986-12: Formwork ties; requirements, testing, use

Section 3.1 of the following document contains information on the application of the Guideline for approval-related and external surveillance testing of prestressing steels (Richtlinie für Zulassungs- und Überwachungsprüfungen für Spannstähle) in relation to formwork ties:
MICHEL, M: Aus der Arbeit der Sachverständigenausschüsse, zu Richtlinie für Zulassungs- und Überwachungsprüfungen für Spannstähle (Fassung 2004),  DIBt Mitteilungen 6/2005 (not available electronically)

pdf-Datei Richtlinie für Zulassungs- und Überwachungsprüfungen für Spannstähle (14 pages ) Fassung: 2004

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
  • 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.

abZ+aBG

Z
new decision
E
supplement
Ä
amendment
V
renewal
G
valid until
Subject concerned Applicant Decision no. Validity
from / to
Ankerstabstahl St 750/875 Typ FS mit umlaufendem Gewinde mit Nenndurchmesser: 15,0 und 20,0 mm Stahlwerk Annahütte Max Aicher GmbH & Co. KG Max-Aicher-Allee 1-2 83404 Ainring-Hammerau Z-12.5-104 Z: 28.11.2023
G: 03.12.2028
Ankerstabstahl, niedriglegiert und warmgewalzt St 900/1100 mit Gewinderippen Nenndurchmesser: 15 und 20mm LIBERTY OSTRAVA a.s. Vratimovská 689/117 719 00 OSTRAVA-KUNCICE TSCHECHISCHE REPUBLIK Z-12.5-114 Z: 06.05.2022
G: 12.05.2027
Ankerstabstahl St 900/1050 mit Gewinderippen, SAS 900 FC, Nenndurchmesser: 15 und 20 mm Stahlwerk Annahütte Max Aicher GmbH & Co. KG 83404 Ainring - Hammerau Z-12.5-118 Z: 22.09.2022
G: 03.08.2027
Ankerstabstahl St 900/1100 mit Gewinderippen AWM 1100, Nenndurchmesser 26,5 mm Stahlwerk Annahütte Max Aicher GmbH & Co. KG 83404 Ainring Z-12.5-132 Z: 22.10.2025
G: 03.10.2030
Ankerstabstahl St 900/1100 mit Gewinderippung, Nenndurchmesser: 15mm Swiss Steel AG Emmenweidstraße 90 6020 Emmenbrücke SCHWEIZ Z-12.5-149 Z: 22.10.2021
G: 22.10.2026
Ankerstabstahl St 750/875 mit umlaufendem Gewinde für Schalungsanker mit Nenndurchmesser: 15 mm (BETOMAX 15) BETOMAX systems GmbH & Co. KG Dyckhofstraße 1 41460 Neuss Z-12.5-82 Z: 09.10.2025
G: 04.02.2030
Ankerstabstahl St 900/1100 mit Gewinderippen AWM 1100, Nenndurchmesser: 15 und 20 mm Stahlwerk Annahütte Max Aicher GmbH & Co. KG 83404 Ainring Z-12.5-96 Z: 21.10.2025
G: 03.10.2030