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HE female thread anchors for suspended installations

HE anchors are designed for the professional installation of suspended systems such as piping, cable trays, ventilation ducts, suspended ceilings and fire sprinkler systems.

Available in sizes up to M20, with multiple coating options and approvals for projects requiring higher load capacities and specific certifications.

View the range

Why choose HE female thread anchors?

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A range designed to cover more projects

With seven different versions, three coating options and sizes from M6 to M20, the HE range offers the right solution for virtually any suspended installation.

icono calidad

Guaranteed INDEX®
quality

Manufactured in-house and approved under rigorous quality control procedures, our products provide the safety and confidence you are looking for. Learn more

icono recubrimientos

Available in three
coating options

Choose the right protection according to the installation environment: ATLANTIS C3-L, A4 stainless steel or zinc-plated (≥ 5 μm). These finishes provide excellent wear and corrosion resistance, extending the service life of the fixing. Learn more

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Available
up to M20

The wide range of thread sizes allows solutions for installations where other anchors are not suitable, making it possible to meet the requirements of higher-load applications.

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Compatible with metric threaded rods and bolts

The internal female thread accepts both threaded rods and metric screws or bolts, allowing easy adaptation to different suspension systems.

icono facil desmontaje

Easy dismantling and maintenance

The threaded rod or bolt can be removed without extracting the anchor from the concrete, allowing the same fixing point to be reused for future installations.

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Find them
in INDEXcal

If you use our anchor calculation software in accordance with Eurocode 2, Part 4, you can identify the anchors that best suit your project.

HE female thread anchor range

HE-HO

HE-HO

Zinc-plated. Opt.7 ETA Assessed & for non-structural applications
See
HE-A4

HE-A4

A4 Stainless steel. ETA Assessed for non-structural applications
See
HE-CL

HE-CL

With collar. Zinc-plated. Opt.7 ETA Assessed & for non-structural applications
See
HE-C4

HE-C4

A4 stainless steel coating. With collar. ETA‑approved for non-structural applications.
See
HE-HC

HE-HC

Short. Zinc-plated. ETA Assessed for non-structural applications
See
HE-NO

HE-NO

Zinc-plated
See
HE-NS

HE-NS

ATLANTIS C3-L
See

Maximum safety and quality assurance

HE female thread anchors are approved in accordance with the industry’s most demanding standards, ensuring safe and reliable projects, even in critical applications and high-risk environments.

ETA 14/0135

ETA 14/0135 approved for redundant non-structural systems in cracked and non-cracked concrete (C12/15 to C50/60), including fire exposure conditions.

ETA 14/0068

ETA 14/0068 approved for structural applications in non-cracked concrete (C20/25–C50/60).

empresa calidad certificada fm

FM Approved

FM approved for the installation of fire sprinkler systems.

Fire resistance

Approved for R30‑R120 fire resistance in concrete.

VdS CEA 4001

Suitability confirmed for sprinkler system installations in accordance with VdS CEA 4001.

HE anchor design and geometry

Internal thread The anchor incorporates a female thread that allows the installation of threaded rods or metric bolts, making it compatible with different suspension systems.
Internal cone During installation, the internal cone moves inside the sleeve, activating the controlled expansion of the expansion segments. This mechanism creates the mechanical interlock between the anchor and the concrete.
Expansion segments The expansion segments expand evenly against the sides of the drilled hole, ensuring optimum load transfer and a secure, reliable fixing.
Protection The plastic insert inside the anchor prevents the cone from falling out during installation or transportation.
Engraved identification Each anchor features the diameter engraved on its body, allowing quick identification of the correct drill bit and setting tool.
HE-CL collar version Prevents the anchor from being inserted too deeply into the base material in the event of an over-drilled hole.

Coatings for maximum protection

The HE range is available in three finishes to suit different corrosion levels and environmental conditions.
C1 C2 C3 C4 C5
Pictograma RP Zincado Pictograma RP Atlantis C3 H Pictograma material Inoxidable A4
Pictograma apto para aplicación en interiores sin condensación Indoors without condensation
Pictograma apto para aplicación en interiores con condensación temporal Indoors with temporary condensation
Pictograma apto para aplicación en exteriores en zonas rurales con muy baja contaminación Outdoors in rural areas with very low contamination
Pictograma apto para aplicación en exteriores con baja contaminación Outdoors with low contamination
Pictograma apto para aplicación en exteriores con concentración moderada de contaminación Outdoors with moderate concentration of contamination
Pictograma apto para aplicación en áreas costeras Coastal areas
Pictograma apto para aplicación en exteriores con fuerte contaminación industrial Outdoors with strong industrial contamination
Pictograma apto para aplicación en zonas cercanas a carreteras Areas near roads

Atlantis C3-L coating: Suitable for dry indoor conditions for up to 50 years or in C3-type outdoor environments according to ISO 9223 for up to 25 years.

A4 Stainless Steel: Suitable for indoor and outdoor applications, in coastal areas, areas exposed to high pollution levels or areas near roads.

Zinc-plated coating: Suitable for use in dry indoor conditions (category C1 according to ISO 9223) for up to 50 years.

Female thread expansion anchors for structural and non-structural fixings

HE anchors are suitable for fixing structural and non-structural systems to concrete.
  • Suspended ceiling installations
  • Fire sprinkler systems
  • Pipe suspension systems
  • Threaded-rod pipe supports
  • Ventilation and air duct systems
  • Cable trays
  • Structural fixings in non-cracked concrete
  • Redundant non-structural fixings in cracked concrete

Accessories for installing female thread anchors​

The range includes dedicated drill bits and setting tools that ensure fast, easy installation while achieving the certified performance of the anchor.
HE-HO SDS

HE-HO SDS

Drop-in anchor with internal thread for heavy loads. Stop drill bit for HE-HO
See
HE-HC SDS

HE-HC SDS

Drop-in anchor with internal thread for heavy loads. Stop drill bit for HE-HC
See
EXP

EXP

Drop-in anchor with internal thread for heavy loads. Manual setting tool for Drop-in anchors HE (except HE-HC)
See
EXP

EXP-C

Drop-in anchor with internal thread for heavy loads. Manual setting tool for Drop-in anchors HE-HC
See
EXP-SDS C

EXP-SDS

Drop-in anchor with internal thread for heavy loads. Machine setting tool with SDS drill chuck for Drop-in anchors HE (except HE-HC)
See
EXP-SDS C

EXP-SDS C

Drop-in anchor with internal thread for heavy loads. Machine setting tool with SDS drill chuck for Drop-in anchors HE-HC
See

HE female thread anchor installation guide

To ensure the certified performance of the anchor, follow the installation sequence indicated in the technical data sheet for each model and use the appropriate setting tool.

Step 1
Step 2
Step 3
Step 4
Step 5
Step 6

How can you check whether the anchor has been installed correctly?

The EXP setting tool with rubber protector ensures controlled, uniform and safe expansion, allowing the anchor to achieve its certified performance.
exp sin fondo

FAQS

What applications are HE anchors recommended for?

HE anchors are designed for suspended installations on concrete, including piping, cable trays, ventilation ducts, suspended ceilings and fire sprinkler systems. Their female thread design allows easy installation of threaded rods or metric bolts.
The HE range is available from M6 to M20, covering everything from light-duty installations to applications requiring higher load capacities.
Yes. Selected models are ETA approved for redundant non-structural applications in both cracked and non-cracked concrete, as well as structural applications in non-cracked concrete, depending on the model.
The range includes ETA approvals for structural and non-structural applications. Selected models are also FM approved for fire sprinkler systems and validated in accordance with the VdS standard.
HE anchors are available in three finishes to suit different installation environments. For indoor applications, the zinc-plated finish is generally sufficient. In environments with moderate corrosion exposure, the ATLANTIS C3-L version provides enhanced protection. For outdoor or highly corrosive environments, the A4 stainless steel version is recommended to maximise the service life of the fixing.
Collared models incorporate a stop that prevents the anchor from being inserted deeper than intended during installation, ensuring correct positioning.
The HE-HC version is recommended for thin concrete slabs or areas with a high reinforcement density, reducing the risk of striking reinforcing bars during drilling.
Yes. Once the threaded rod or bolt has been removed, the anchor remains in the concrete and can be reused with another compatible fixing.
Yes. To achieve the certified performance of the anchor, expansion must always be carried out using the specific EXP setting tool recommended for each model.

Both the HE and TFF are female thread anchors designed for suspending installations on concrete, such as piping, cable trays and HVAC systems.

The HE range stands out for its wider range of thread sizes (up to M20) and its specific approvals, making it the preferred solution for applications requiring higher load capacities or particular certifications, such as fire sprinkler systems.

The TFF is a high-performance alternative for smaller-diameter applications and may be an excellent choice where installation requirements allow.

Ultimately, the best option depends on the technical requirements and budget of the project. Our sales team will be pleased to help you select the most suitable solution for your application.

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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 P.I. La Portalada II | c/ Segador 13, 26006 | Logroño (La Rioja).
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TECHNICAL TRAINING

Our engineering department provides specific and personalised training on the different topics related to fixing systems: metallic or chemical fixings, installation systems, regulations, calculations, etc.

 

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 P.I. La Portalada II | c/ Segador 13, 26006 | Logroño (La Rioja).
Read more

site visits

The relationship with our customers does not end with the sale of our products. At INDEX® we understand that it is often necessary to accompany them on site, where our experience is the best ally to ensure fits works perfectly. Our engineers and technicians support the managers of each project in planning and selecting the best solution for effectively saving time and money.

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 P.I. La Portalada II | c/ Segador 13, 26006 | Logroño (La Rioja).
Read more

ENGINEERING SERVICES AND CALCULATIONS

At INDEX® we want to offer our customers the most comprehensive service. In addition to providing them with the best fixing and anchor solutions, our team of specialised engineers technically advises all our customers. We also have powerful software tools to do any necessary calculations with total accuracy.

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 P.I. La Portalada II | c/ Segador 13, 26006 | Logroño (La Rioja).
Read more