GFC StructaTM 6 Screw Anchor - European Technical Assessment

Oct 28, 2026

European Technical Assessment for the GFC Structa™6 screw anchor, covering carbon steel anchor sizes 6, 8, 10, and 14. It describes installation in a predrilled cylindrical hole, with threading that forms an internal thread and anchorage by mechanical interlock in concrete and precast prestressed hollow core slabs. The assessment includes fire safety and use safety provisions, performance references, AVCP system requirements, and specifies verification based on annexed product, installation, and quality plan documentation.

LanguageEnglish

CategoryResearch & Report

FormatPDF

Pages19

Reading Time48 min

AccessFree to download

General Part

Product description and intended use

Performance and assessment methods

Specific Part

Technical description of the product

Fire safety and safety in use (BWR 2/BWR 4)

AVCP system and technical details

European Technical Assessment GFC StructaTM 6 Screw Anchor • Precast, prestressed hollow core concrete. ETA-24/0095 Certification For sales & customer support: [sales@gfcfasteners.co. nz / 09](sales@gfcfasteners.co. nz / 09) 5790722 For specification & install support: National Specification Manager Simon [Hitchcock / simon.hitchcock@gfcfasteners.co. nz](Hitchcock / simon.hitchcock@gfcfasteners.co. nz) Engineering Services Manager [Mark Ash / marka@gfcfast.co. nz](Mark Ash / marka@gfcfast.co. nz) INSTITUTO DE CIENCIAS DE LA CONSTRUCCI ÓN EDUARDO TORROJA Member of [www.eota.eu](www.eota.eu) C/ Serrano Galvache n. 4 28033 Madrid (Spain) Tel.: (34) 91 302 04 40 Fax: (34) 91 302 07 00 [direccion.ietcc@csic.es](direccion.ietcc@csic.es) [https://dit.ietcc.csic.es](https://dit.ietcc.csic.es) European Technical Assessment ETA 24/0095 of 06/02/2024 English translation prepared by IETcc . Original version in Spanish language General Part Technical Assessment Body issuing the ETA designated according to Art. 29 of Regulation (EU) 305/2011: Trade name of the construction product: Product family to which the construction product belongs: Manufacturer: Manufacturing plant: This European Technical Assessment contains: This European Technical Assessment is issued in accordance with regulation (EU) No 305/2011, on the basis of: Instituto de Ciencias de la Construcción Eduardo Torroja (IETcc) GFC Structa™6 Screw Anchor Screw anchor of Shaft Diameter 6,8,10 and 14 for use in concrete and in precast prestressed hollow core slabs for redundant non-structural systems GFC Fasteners & Construction Products Ltd. 22 Olive Rd Penrose; Auckland NZ GFC Fasteners & Construction Products Ltd. 22 Olive Rd Penrose; Auckland NZ 18 pages including 4 annexes which form an integral part of this assessment. European Technical Assessment EAD 330747-00- 0601 “Fasteners for use in concrete for redundant non-structural systems”, ed. May 2018 This European Technical Assessment is issued by the Technical Assessment Body in its official language. Translations of this European Technical Assessment in other languages shall fully correspond to the original issued document and should be identified as such. This European Technical Assessment may be withdrawn by the issuing Technical Assessment Body, in particular pursuant to information by the Commission according to article 25 (3) of Regulation (EU) No 305/2011 . SPECIFIC PART 1. Technical description of the product The GFC Structa™6 Screw Anchor is a fastener made of carbon steel of sizes 6,8,10 and 14. The fastener is installed into a predrilled cylindrical drilled hole. The special thread of the fastener cuts an internal thread into the concrete member while setting. The anchorage is characterised by mechanical interlock between fastener and concrete. Product and installation descriptions are given in annex A. 2. Specification of the intended use in accordance with the applicable European Assessment Document. The performances given in section 3 are only valid if the anchor is used in compliance with the specifications and conditions given in annex B. The verifications and assessment methods on which this European Technical Assessment is based, lead to the assumption of a working life of the anchor of at least 50 years. The indications given on the working life cannot be interpreted as a guarantee given by the producer, but are tobe regarded only as a mean to choosing the right products in relation to the expected economically reasonable working life of the works. 3. Performance of the product and references to the methods used for its assessment 3.1 Safety in case of fire (BWR 2) | Essential characteristic | Performance | | --- | --- | | Reaction to fire | Anchorages satisfy requirements for class A1 according to EN 13501-7 | | Resistance to fire | See annex D | 3.2 Safety in use (BWR 4) | Essential characteristic | Performanc

FAQs

What is the GFC Structa™6 screw anchor designed for?

It is designed for use in concrete and in precast prestressed hollow core slabs for redundant non-structural systems.

How is the anchor installed and how does it achieve anchorage?

It is installed into a predrilled cylindrical hole. The special thread cuts an internal thread into the concrete while setting, creating mechanical interlock between the fastener and concrete.

What assessment topics are included in this ETA?

The ETA covers safety in case of fire (BWR 2) and safety in use (BWR 4), including reaction to fire and references to fire resistance and characteristic resistance methods.

Oct 28, 2026

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