construction of a bridge over the sea

Concrete screw anchors TH/TX/TF

New design, more range, full manufacturing

Operator using INDEX TH/TF anchors in an installation

The new approved high-performance anchors for direct fastening in cracked and non-cracked concrete are the most professional and effective solution. Its design allows quick and easy installation, guaranteeing maximum performance and higher load values compared to the previous version. The assortment of TH/TF anchors consists of different models of heads, suitable for installation in structural and non-structural elements such as railings, shelves or elements that need to be uninstalled or adjusted..

Complete range of INDEX TH/TX/TF anchors available in 9 models with different heads
Pictogram HO AEOTA Pictogram HO AEOTA NE Pictogram HO Seismic C1 & C2 Pictogram HO Seismic C1 Pictogram Fire Resintance Pictogram installation of sprinkler systems

The most professional and effective solution

  • Full range, suitable for any installation. Available in 9 different head models. +info
  • 2 types of coatings available. Atlantis C3-H y cincado ≥5μm. The Atlantis C3-H special coating offers protection against corrosion in category C3 atmospheres in accordance with the ISO 9223 standard. +info
  • Highest guarantees. Products approved according to the highest quality standards:
    • Approved (ETA 20/0046) in option 1 for installation in cracked and non-cracked concrete (C20/25-C50/60).
    • Approved (ETA 20/0494) for non-structural redundant systems in concrete (≥ C20/25) and hollow-core slabs (≥ C30/37).
    • Approved for fire resistance R30-R120 in concrete.
    • Seismic approval C1&C2 for structural installation when there is a risk of some type of seismic movement.
  • Maximum performance. Maximum loads recommended in C20/25 to C50/60 cracked concrete and non-cracked concrete. +info
  • Allows installation with up to three different screwing depths (in the Ø6 and Ø10 versions). The other measurements are approved for two installation depths. +info
  • Allows installation with reduced distances between anchors and at the edge of the concrete element. The anchor, which works using a mechanical interference between the thread and the base material, generates a low load on the concrete.
  • Confirmed suitability for the installation of sprinkler systems in accordance with the VdS CEA 4001 guidelines.

Other noteworthy aspects of the product

  • Available in a wide range of drill diameters. +info
  • Cleaning not necessary. It is not necessary to clean the holes in vertical installations (ceiling and floor).
  • Fully removable anchor. Additionally, it can be unscrewed to correctly adjust the installed element. Suitable for use in temporary installations or when it is required to leave the surface completely transparent after disassembly.
  • EXPRESS installation. Fast and easy installation. Installation time is reduced because it only requires a drill and an impact driver; the use of torque-controlled torque wrenches is not necessary +info
  • INDEX® manufacturing. This allows us to ensure a rigorous control of processes, guarantee the highest quality in our products, provide the best service and obtain a competitive global cost.
  • Available in INDEXcal. The INDEXcal anchors calculation programme is the best tool for designers of structural solutions to comply with the requirements of part 4 of Eurocode 2. Quickly and thoroughly check all the anchors in our catalogue based on the parameters entered by the user, indicating whether or not they fit. +info

Manufactured with A4 stainless steel and carbon steel

TXE bimetal fixing

TXE bimetal fixing
Bimetal Technology

The new TXE fixing model for direct fixing on concrete is manufactured with innovative BIMETAL technology, which offers high resistance to both corrosion and wear during installation.

Firstly, the body of the fixing is manufactured with A4 stainless steel, giving it anti-corrosive properties, up to C5 levels of corrosion. Meanwhile, the tip of the fixing is manufactured in hardened carbon steel, with greater hardness and facilitating the installation and grip on the base material. The innovative production process allows the friction welding of the two materials.

View product
TXE bimetal fixing

Features of A4 stainless steel

The body of the fixing, manufactured in A4 stainless steel, offers excellent resistance to corrosion and oxidation, up to C5 levels of corrosion. It is suitable for applications in outdoor spaces such as:

  • Coastal areas.
  • Outdoor spaces with high industrial contamination.
  • Areas near roads.
  • Tropical and subtropical regions.
TXE bimetal fixing

Resistance of the steel

The tip of the TXE is manufactured in hardened carbon steel, which allows it to withstand wear on the tip and which makes installation easier while providing the maximum performance.

The tip of the fixing has a key role during the installation. It is the area that starts the threading of the fixing on the base material, generating strong friction and wear. This is the reason that this fixing cannot be made completely from A4 stainless steel, a material with a lower level of hardness than carbon steel.

The blue colour of the tip identifies the area where the fusion of both materials is produced.

Maximum guarantees seals

Highest guarantees

The fixing has the most prestigious approvals:

  • ETA 20/0046 approval for structural fixings in cracked concrete.
  • CE certification.
  • C1 Seismic approval, suitable for applications in areas with seismic risk.
  • Fire Resistance approval, for installations exposed to high temperatures or at risk of suffering a fire.
More information on approvals

Range

Ten anchorages for each installation

Concrete screw anchor THA

THA anchor. Countersunk head. ATLANTIS C3-H coating

COUNTERSUNK HEAD.
ATLANTIS C3-H COATING

Pictogram RP Atlantis C3 H
Pictogram HO EOTA Pictogram HO EOTA NE Pictogram Fire Resistance Pictogram HO Seismic C1 & C2

Concrete screw anchor TFN

TFN anchor. Hexagonal head without washer. Zinc-plated coating

HEXAGON HEAD WITHOUT WASHER.
ZINC-PLATED COATING

Pictogram RP Zincado
Pictogram HO EOTA Pictogram HO EOTA NE Pictogram HO Seismic C1 & C2

Concrete screw anchor TFM

TFM anchor. Male thread head. Zinc-plated coating

MALE THREAD HEAD.
ZINC-PLATED COATING

Pictogram RP Zincado
Pictogram HO EOTA Pictogram HO EOTA NE Pictogram Fire Resistance

Concrete screw anchor TFF

TFF anchor. Female thread head. Zinc-plated coating

FEMALE THREAD HEAD.
ZINC-PLATED COATING

Pictogram RP Zincado
Pictogram HO EOTA Pictogram HO EOTA NE Pictogram Fire Resistance

Concrete screw anchor TXE

TXE anchor. Countersunk head with Bimetal point. Stainless steel A4. Opt.1 ETA Assessed

Fixing anchor directly on concrete. ETE Opt. 1 certified. Hexagonal head with Bimetal tip. A4 stainless steel.

Stainless material pictogram
Pictogram HO EOTA NE Pictogram Fire Resistance Pictogram HO Seismic C1

Concrete screw anchor TXA

TXA anchor. Countersunk head with Bimetal point. Stainless steel A4. Opt.1 ETA Assessed

Countersunk head with Bimetal point. Stainless steel A4. Opt.1 ETA Assessed

Stainless material pictogram
Pictogram HO EOTA NE Pictogram Fire Resistance Pictogram HO Seismic C1 Pictogram VdS CEA 4001

Design and geometry

TH/TX/TF Anchors Patented double thread

Patented double thread, optimised to guarantee maximum loads thanks to the design of a double thread that is embedded deep into the concrete.

TH/TX/TF Anchors tempered tip

The tempered tip ensures greater hardness, durability and ease of installation.

TH/TX/TF Anchors Body of high-resistance steel

Body of high-resistance steel (stamped carbon steel).

TH/TX/TF Anchors Cabeza THE/TFE Head: Embossed ribbed

THE/TFE Head: Embossed ribbed washer in hexagonal versions, which ensures a tightness against the base material, preventing the fastening from loosening.

TH/TX/TF Anchors TFF Head. Female thread with double thread

TFF Head. Female thread with double M8/M10 thread, for direct, quick and easy fastening of threaded rods in ceilings (concrete and hollow-core slabs). Suitable for suspension of air conditioning ducts, cable trays, pipe systems, etc.

TH/TX/TF Anchors TFM Head. Male thread

TFM Head. Male thread, for direct, quick and easy fastening of clamps in concrete and hollow-core slabs.

TH/TX/TF Anchors Head

Head: Includes measurement by length (not in the diameter 5 ones).

Bimetal version

Bimetal version. Offers the hardness of a hardened carbon steel tip to facilitate installation, with an A4 stainless steel shaft to provide corrosion protection.

Maximum performance and wide load values

We increased the maximum recommended loads in C20/25 uncracked concrete and C20/25 cracked concrete compared to the previous model.

Cracked concrete

Uncracked concrete

Zinc-plated and Atlantis

Choose the perfect coating according to the corrosion level

C1 C2 C3 C4 C5
Pictogram RP Zincado Pictogram RP Atlantis C3 H
Pictogram suitable for indoor use without condensation Indoors without condensation
Pictogram suitable for indoors with temporary condensation Indoors with temporary condensation
Pictogram suitable for outdoors in rural areas with very low contamination Outdoors in rural areas with very low contamination
Pictogram suitable for outdoors with low contamination Outdoors with low contamination
Pictogram suitable for outdoors with moderate concentration of contamination Outdoors with moderate concentration of contamination
Pictogram suitable for coastal areas Coastal areas
Pictogram suitable for outdoors with strong industrial contamination Outdoors with strong industrial contamination
Pictogram suitable for areas near roads Areas near roads
Pictogram RP Atlantis C3 H
Atlantis C3-H coating:
valid for dry indoor conditions (50 years) or in C3-type outdoor environments according to ISO 9223, for a period of 25 years.
Pictogram RP Zincado
Zinc coating:
suitable for use in dry indoor conditions (category C1 according to ISO 923), for a period of 50 years.
Pictograma material Inoxidable A4
A4 Stainless Steel:
Suitable for indoor and outdoor applications, in coastal areas, areas exposed to high pollution levels or areas near roads.

Maximum versatility. Up to three installation depths

View with dimensions of the three installation depths of INDEX TH/TP anchors

THE 10 x 100 (example)

* In uncracked C20/25 concrete. The other measurements are approved for two installation depths."
Installation Fig. 1 Fig. 2 Fig. 3
hnom Installation depth 85 mm 75 mm 55 mm
Nrec Maximum tensile load recommended * 1.342 kg 1.095 kg 654 kg
Tfix Maximum fixture thickness 15 mm 25 mm 45 mm

Applications

Anchor for fastening structural and non-structural elements

View of the installation of a beam in cracked concrete with INDEX TH/TP anchors

Applications for ETA 20/0046 version (installations in cracked and uncracked concrete)

  • Structural applications
  • Awnings or temporary signage
  • Stadium seats
  • Wood to concrete structures
  • Railings and fences
  • Shelves and racks
  • Structural beams and pillars
View of the installation of a non-structural element with INDEX TH/TX/TF anchors

Applications for versions of non-structural installations (ETA 20/0494)

  • Fastening of tubes
  • Air conditioning conduits
  • Electrical trays or wiring systems
  • Installations in hollow concrete ceilings
  • Installations in hollow-core slab ceilings

Installation guide

EXPRESS installation guaranteeing maximum performance

THE Hexagon head. Atlantis C3-H coating

Step 1 installation THE anchor

Step 1

Step 2 installation THE anchor

Step 2

Step 3 installation THE anchor

Step 3

Step 4 installation THE anchor

Step 4

Step 5 installation THE anchor

Step 5

Step 6 installation THE anchor

Step 6

THA Countersunk head. Atlantis C3-H coating

Step 1 installation THA anchor

Step 1

Step 2 installation THA anchor

Step 2

Step 3 installation THA anchor

Step 3

Step 4 installation THA anchor

Step 4

Step 5 installation THA anchor

Step 5

Step 6 installation THA anchor

Step 6

THP Pan head. Atlantis C3-H coating

Step 1 installation THP anchor

Step 1

Step 2 installation THP anchor

Step 2

Step 3 installation THP anchor

Step 3

Step 4 installation THP anchor

Step 4

Step 5 installation THP anchor

Step 5

Step 6 installation THP anchor

Step 6

THT Truss Head. Atlantis C3-H coating

Step 1 installation THT anchor

Step 1

Step 2 installation THT anchor

Step 2

Step 3 installation THT anchor

Step 3

Step 4 installation THT anchor

Step 4

Step 5 installation THT anchor

Step 5

Step 6 installation THT anchor

Step 6

TFE Hexagon head. Zind-plated coating

Step 1 installation TFE anchor

Step 1

Step 2 installation TFE anchor

Step 2

Step 3 installation TFE anchor

Step 3

Step 4 installation TFE anchor

Step 4

Step 5 installation TFE anchor

Step 5

Step 6 installation TFE anchor

Step 6

TFN Hexagon head without washer. Zind-plated coating

Step 1 installation TFN anchor

Step 1

Step 2 installation TFN anchor

Step 2

Step 3 installation TFN anchor

Step 3

Step 4 installation TFN anchor

Step 4

Step 5 installation TFN anchor

Step 5

Step 6 installation TFN anchor

Step 6

TFS Fixing stud. Zind-plated coating

Step 1 installation TFS anchor

Step 1

Step 2 installation TFS anchor

Step 2

Step 3 installation TFS anchor

Step 3

Step 4 installation TFS anchor

Step 4

Step 5 installation TFS anchor

Step 5

Step 6 installation TFS anchor

Step 6

TFM Male thread head. Zind-plated coating

Step 1 installation TFM anchor

Step 1

Step 2 installation TFM anchor

Step 2

Step 3 installation TFM anchor

Step 3

Step 4 installation TFM anchor

Step 4

Step 5 installation TFM anchor

Step 5

Step 6 installation TFM anchor

Step 6

TFF Female thread head. Zind-plated coating

Step 1 installation TFF anchor

Step 1

Step 2 installation TFF anchor

Step 2

Step 3 installation TFF anchor

Step 3

Step 4 installation TFF anchor

Step 4

Step 5 installation TFF anchor

Step 5

Step 6 installation TFF anchor

Step 6

TXE Fixing anchor directly on concrete. ETE Opt. 1 certified. Hexagonal head with Bimetal tip. A4 stainless steel

Step 1 installation TXE anchor

Step 1

Step 2 installation TXE anchor

Step 2

Step 3 installation TXE anchor

Step 3

Step 4 installation TXE anchor

Step 4

Step 5 installation TXE anchor

Step 5

Step 6 installation TXE anchor

Step 6

TXA Countersunk head with Bimetal point. Stainless steel A4. Opt.1 ETA Assessed

Step 1 installation TXA anchor

Step 1

Step 2 installation TXA anchor

Step 2

Step 3 installation TXA anchor

Step 3

Step 4 installation TXA anchor

Step 4

Step 5 installation TXA anchor

Step 5

Step 6 installation TXA anchor

Step 6

Documentation

As well as our TH/TX/TF-type concrete screws, at INDEX, we have a wide range of metal fixings suitable for countless tasks, materials and loads. Discover them all in our Metal Fixings section.

Request more information

TÉCNICAS EXPANSIVAS S.L. informs that the personal data provided voluntarily on this website will be processed and incorporated into the corresponding files, responsibility of TÉCNICAS EXPANSIVAS S.L, is reported at the time of personal data collection, although, according to the specific case, its purpose may be any of the following: attention to your referred request, complaint or question, established relationship maintenance, comprehensive and commercial customer management, accounting and billing or sending communications, including electronic media, news and activities related to TÉCNICAS EXPANSIVAS S.L.

The data in our files are strictly confidential and shall be treated with the utmost confidentiality and shall comply with all the requirements provided for the General Data Protection Regulation (GDPR) 2016.

According to Data Protection legislation, you are strongly advised not to send high-level personal data, such as those relating to health, as they are not encoded or encrypted. Should these details be sent, it is done so under your sole responsibility.

The user may at any time exercise their rights of access, rectification, cancellation and opposition under the provisions of the General Data Protection Regulation (GDPR) 2016 by sending a letter together with a photocopy of your ID, to: PI La Portalada II | C/Segador 13, 26006 | Logroño (La Rioja).