Adit TF concrete screw

TF Concrete Screw

Direct-fastening concrete screw, zinc plated – for cracked and uncracked concrete, seismic C1-C2 and hollow-core slabs.

ETA1 – cracked concreteETA6 – hollow-coreSeismic C1-C2CSIC – sprinklersFire R120
5–18

Diameters, mm
R120

Fire resistance (Efectis)

Removable and re-usable

What is a Concrete Screw?

The concrete screw is one of the smartest solutions in the anchoring world. Unlike traditional anchors that need an external plug or a chemical resin, a direct-fastening concrete screw cuts its own thread straight into the walls of the drilled hole, creating a strong and precise mechanical lock – with no preparation steps.

The big advantage: speed, accuracy and re-usability – the screw can be removed and re-installed without compromising the strength of the anchorage. That is a unique property with no substitute when anchoring formwork.

Technical Specification

CharacteristicsDirect-fastening screw for concrete, re-usable, and suitable for hollow-core / prestressed slabs (Spancrete)
MaterialCarbon steel, grade 8.8
CoatingZinc plated, 5 µm (ISO 4042). Typical resistance 96–200 hours in salt spray to ISO 9227
TechnologyDirect fastening
Diameters5, 6, 8, 10, 12, 14, 16 and 18 mm
Cracked concreteYes
Seismic loadsYes – C1-C2
Re-usableYes
Fire standardYes – R120 (Efectis)
SprinklersYes – CSIC certificate
ApprovalsETA1 for cracked and uncracked concrete · ETA6 for hollow-core / prestressed slabs · CSIC for sprinklers

Approvals & Standards

ETA1 – cracked and uncracked concrete

The most rigorous approval for mechanical anchors in Europe. Full approval for use in both cracked and uncracked concrete.

ETA6 – prestressed and hollow-core

A unique approval for hollow-core slabs (Spancrete), allowing direct anchoring into such ceilings with no additional material.

Seismic C1-C2

Critical in Israel as an active seismic zone. Categories C1-C2 cover the strictest anchoring requirements.

CSIC – sprinklers

A certificate permitting official use in fire-suppression systems, with full engineering accountability.

Fire resistance R120

Approved by Efectis – structural integrity and load-bearing capacity maintained for two continuous hours.

Load resistance

Static, quasi-static, dynamic and shock loads.

Head Range – TF Series

The same screw and the same approvals, in a head for every application. Every head is also available in the TH Atlantis coating and in TX stainless steel.

Adit TFT concrete screw
TFT
Thin head
Adit TFP concrete screw
TFP
Dome head
Adit TFA concrete screw
TFA
Countersunk head
Adit TFE concrete screw
TFE
Hex head
Adit TFM concrete screw
TFM
Combined threaded-rod head
Adit TFS concrete screw
TFS
Threaded-rod head

Adit TFF concrete screw

Adit TFJ concrete screw
TFJ
Wide thin head

Applications

Anchoring formwork

Being able to remove and re-install the screw makes it the ideal solution for anchoring formwork legs.

Overhead suspension

Pipework, cable trays and HVAC ducts – installed in one pass, with no extra tools.

Fire-suppression systems

Sprinkler anchoring backed by the CSIC certificate.

Hollow-core slabs (Spancrete)

Direct anchoring into prestressed and hollow ceilings, backed by ETA6.

Structural work and railings

Structural connections in cracked concrete, including seismic loads.

Light fixings

Signs, pictures and frames – fast and reliable, with no chemicals.

The TFE Anchor for Hollow-Core (Spancrete) and Prestressed Slabs

The only officially approved sizes for hollow-core slabs are TFE5 and TFE6, matched to the thin lower shell of a Spancrete slab without damaging the internal prestressing strands.

A male anchor, not a sleeve

The TFE threads directly into the concrete and forms an internal mechanical thread; it can be fully removed and re-used – unlike the HC and HE-HC female anchors, which stay permanently in the base material.

An advantage when working at height

Installation is a single pass – drill, clean, drive with an impact wrench. No second tool to expand a sleeve. Significantly less effort and fatigue during long work on scaffolding.

Multi-point suspension systems

Approved for redundant non-structural systems – services, fire-suppression pipework, modular partitions, and electrical and HVAC ducting.

Files to Download

Instruction Videos

Videos A Better Test on the Area





concrete screw ADIT TF/ TX/TFE | Full Professional Guide

What is concrete screw?

concrete screw is one of the smartest solutions in the anchoring world and the building. Unlike traditional genes requiring external nylon plug or chemical material, concrete screw for direct fastening The “cut” operation of the Brig directly into the concrete drilling walls, creating a strong and accurate mechanical lock – without complicated preparation stages.

The Great Advantage: The speed of work, high precision and reuse capacity can be removed from the screw and returned to its place without damaging the strength anchoring Q1. This is a unique feature that has no replacement in the area of anchoring molds.

Where do you use concrete screw?

concrete screw is used for a wide range of engineering applications, from the keyboard to the most heavy:

anchoring Systems and Infrastructure

Tablets, Spartalers, electricity, plumbing, ventilation and ionizing systems

Heavy construction

residential towers, campgrounds, marcials and tunnels – dynamic and statistical loads

The feet of the molding

anchoring can be removed and returned between casting and casting without damage to strength

Temporary connections.

Temporary hurdles, temporary buildings and interim sensors in the construction phases

Screen Walls (Curtain Walls)

anchoring Screen Walls for concrete – Engineering accuracy and long-term resistance

Easy gardeners

You hung signs, paintings, frames – fast and reliable without chemicals.

concrete screw TF – The Leading Technological Solution

concrete screw ADIT TF It is one of the leading global market segments, produced by a Spanish company considered one of the largest anchoring systems in Europe.

approval Sea and Standards – Your Card for Safe Building

ETA1 – Cracked concrete and Not a crack
ETA6 – concrete Druck and Klute
C1-C2 – earthquakes
CSIC – Sprinklers
A happy Fire Standard
  • The ETA1 standard The approval is the most rigorous to mechanical anchors in Europe. The approval is full of use in Cracked concrete and non-Cracked concrete.
  • The ETA6 standard approval is unique to work in concrete Druze and Spancrete, which allows anchoring to direct such surveys without any additional materials.
  • approval C1-C2 – It is critical in Israel as an active seismic region. C1-C2 categories refer to the strictest anchoring requirements.
  • approval CSIC certificate, which allows official use of the anchoring firefighting systems, with full engineering responsibility.
  • resistance in Bombs static, semi-static, dynamic and suddenly melted loads.

concrete screw – TF, TH and TX: What is the difference?

Choosing the right coating for the concrete screw is an important engineering decision no less than the selection of the diameter and length. The series is available in three different environments.

TF – Cold balloon (Basical coating)

Electrolyte salmon of 5 microcosmThe right for dry internal environments. resistance is typical of about 96–200 hours in the Salt Fog cell according to ISO 9227. It is usually suitable for internal construction applications.

TH – Atlantis C3-M (Highly improved)

This is the advanced version that comes with a coating. Atlantis C3-M – Organic coating from a layer specially developed for screwcakes around aggressively. He is Not not Ordinary hot balloon (HDG) and not a simple cold pill.

Atlantis C3-M – 3 layers

steel
The base of steel 8.8 The screw body
Absence
Category 1: Electrolyteal 5 microns
The conversion
Layer 2: Chemical conversion – Passivation 1 microcosm
Apocalypse ×2
Layer 3: Apocalyssin – 2 consecutive layers 14 A total microgen.
Total thickness: >20 micron | drying: 180–200°C for 30–35 minutes
layerMaterialthickness.
1Electrolyte (Zinc plating)5 microns
2Chemical conversion (Passivation)1 microcosm
3Apocalyssin – 2 consecutive layers14 A total microgen.
Totally.20 microns

Atlantis C3-M

500+

guaranteed hours
The dust of salt.
700+

Typical hours.
(INDEX)
816h

Red Corsica
First (Azterlan)

Atlantis vs. Hot pill (HDG) 45 microns

Although a hot glories are twice thick, Atlantis C3-M It costs him at resistance for the Colossia.:

TestingAtlantis THHDG 45 microbin
ASTM-B117 – 1,440 hours in water ⁇ nearly without corrosion ⁇ corrosion is very evident
ASTM-G85 – 1,440 hours Excellent situation. ⁇ corrosion is very evident
ISO 9227 – The Fog of Salt ⁇ >600 hours-400 to 500 hours

Why is Atlantis better than hot balloon?

  • The Fox layer creates A physical barrier Water and oxygen – unlike a zinc that works “correct”
  • There is no change in difficulties or structure from a metalgic – a low temperature production process (not 4 ⁇ C+ as in hot glories)
  • No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No hydrogen beer (Hydrogen Embrittlement) – a typical problem in the normal electrolyte glories
  • Less corrosion glucoani in contact with other metals
  • resistance for Dissertation and Bases – relevant in concrete with high-pHRG
  • Without Friday, the rules are set. ReACH and RoHS

concrete screw TH suitable for outdoor environments, sea, high humidity and projects are exposed – corrosion categories C3 and above.

TX – SS316/A4 (especially aggressive environments)

concrete screw TX is made of the SS316 (A4) full, suitable for marine environments, swimming pools, hospitals, food industry and aggressive chemical conditions.


A range of concrete screw TF

The modelHeadMain Use
TFE / THE / TXEHead of Box (Snow)General use of heavy anchoring
TFA / THA / TXAHead of Connomin (Countersunk)Flat connections, without prominent
TFT / THT / TXTthin head (truss)Connecting with tracks and profiles
TFP / THP / TXPHead of button (pan)Wide connection areas
TFSthreaded rod (stud bolt)Connecting with an external mother
TFMThe common ga (hanger male)hanging and waiting.
TFF / TXFThe internally threaded anchor (hanger female)Conversible
BTeye2(See) by Eye RunThe High-High Safety Organ – EN795

Why buy concrete screw TF through Adit?

Professional and Experience

Company Company Company Company Adit Ltd It has been operating in the Israeli market since 2006, with over 18 years of experience in anchoring solutions. The technical team specializes in engineering consultancy to select the right screw for all project.

True technical service

  • Advice to choose the model, the diameter and the right length.
  • files, Technical data and ETA Certificates for immediate download
  • Supporting complex projects includes engineering calculations
  • Escorts of better tests on the ground

presence in large projects

The City of Wine Ashkelon
First Sir
LYFEARS OF BARS
ECO Tower Tel Aviv
ACR is in
The cavalry of Haifa
State Square (Al-Qatrom)
The French Hill Jerusalem
The Empress Golfer
The Spinal Car

anchor screw TFE for Spancrete ceilings (Spancrete) and concrete Druck

The anchor of the screw ADIT TFE Representing the Technology front in the direct mechanical anchoring. Unlike arrow or pelvictors, the screw anchor is directly screwed into the concrete fever, while it creates an accurate inner vector in the infrastructure body and ensures optimal loads of loads without creating half excessive expansion.

approval International Sea and resistance in Fire

The anchor holds the strictest European standard. ETA anchoring in Cracked concrete and Un-Supted, and is also approved for use in multiple points systems (Redundant Non-structural Systems) for infrastructure steeping applications, fire-fighting pipeline, modular partitions and electrical and air conditioning. Another critical feature of the TFE is resistance and official fire in extreme fire scenarios (classification of the classification) R120It allows him to maintain structural integrity and the ability to load for two hours of high temperatures exposure.

Dedicated performance in Spancrete ceilings (Spancrete) and comparison to female players

anchoring Al-concrete Drucking trolls (Swild/Shinkrit) poses a complex engineering challenge, due to the thickness of the limited lower shell and the absolute need to avoid damage to the internal exclusion cables. The screw TFE anchor (with the approved 5 and 6) excels in this application, thanks to its direct screw capacity that produces a reliable mechanical lock in the thin concrete cortex without operating a semi-circulatory interval that endangers the whole ceiling.

In order to enable planners and contractors to have a precise choice of the most appropriate solution to the specification, here is a comprehensive technical comparison between the screw TFE anchor and the HC-type anchoring and HC-type anchoring solutions that are also marketed by Adit:

Technical characteristic/ parameterADIT TFE (5, 6)ADIT HCADIT HE-HC
The anchoring technologydirect fastening to concreteThe sleeve is expanding (canba)The anchor of the snail/snail (snail)
How to get the lockAn internal mechanical ovation in the concrete bodyThe snow in space or in the thin shellExpansion of the sleeve is controlled by an internal penis
Installation, Dissolution, and ReuseCompletely and happy to reuse (Re-usable)Permanent in the infrastructure, only the male screw that is fun.Permanent in the infrastructure, only the male screw that is fun.
approval is official for the ETA.(Five and 6th as per European standard)(A dedicated and happy anchor for hollows)(Yes, an illuminated version adapted to Spancrete)
resistance Happy FireYes, the R120 classification.Happy Efectis R2014Happy Efectis R2014

Advantages revolutionary installation for work at height

One of the most prominent Advantages of the TFE in the field is reflected quickly and in the simplicity of the application. The installation is carried out in one direct bell: the codes, the slicking the fever, and burying the anchor with the proper Impact key.

The need for special opening. (To distinguish traditional pyreggens) dramatically reduces the effort of workers and tiredness in prolonged work on fibros or hanging details above the head.

Details of the size and diameter

The anchor is available in a number of fully-fitting locomotives required in project, when the TFE5 requires drilling 5mm, and TFE8 requires drilling 8 mm respectively, allowing time savings and drill bits in the area.

TFE5 – drilling 5 mm
TFE8 – drilling 8mm
Happy ETA to Cracked concrete
resistance Fire R120

Common Questions about concrete screw

What is the difference between concrete screw and Chemical anchor?
concrete screw comes with a direct-injected barbaric in concrete and creates a mechanical lock – without chemicals. Chemical anchor uses the adhering material (epoxyi, Wienyl-Aster) that fills the drill. The concrete screw advantage: The speed of installation and reuse option.
The Chemical anchor advantage: The performance of a higher attraction in broad drills and weak concrete.
Can I pull back and return concrete screw?
Yes, this is one of the main Advantages of screw. It can be leaked, made changes and returned without any serious damage to strength. This feature makes it the ideal solution for anchoring leg molds.
Is concrete screw compatible with Cracked concrete?
Yes, the Burger TF holds approval ETA For use in Cracked concrete (Cracked concrete), with value of load calculated for two situations. This is a critical requirement for projects according to European and Israeli construction standards.
What is the difference between TF and TH?
Both models are technically and geometrically identical. The difference is in the coating: TF – Carly (zinc plated) TH – Atlantis C3-M coating with resistance corrosion C3 and above. TH is suitable for outdoor, sea, high humidity and projects are exposed.
What is the difference between TF and TX?
TF is made of 8.8 steel with a gluton coating, while TX is made of SS316 (A4) full. TX is particularly aggressive: sea, swimming pools, hospitals, food industry and chemical conditions.
Is concrete screw a good TF for earthquakes?
Yes, the Burger TF holds approval C1-C2. . . In Israel, projects in the Jordan Valley region, the Dead Sea, Negev and other areas are considered risk zones and require kites with this approval.
What are the bars and screws available?
BurgTF is available in diameters of 6, 8, 10, 12, 14 and 18 mm, and in the lights adapted to each diameter. For example, TFE6 requires drilling 5 mm, and TFE8 requires 6.5 mm. The full range is in the official technical issue.
What is the difference between the TFE anchor and the HC and HC internally threaded anchors and anchoring?
TFE is a concrete screw that threads directly into concrete and creates an internal mechanical variant, and can be fully combed and reused. HC and HC are female-type ray/decicine anchors that remain constant in infrastructure after installation – can be washed and replaced only the male screw incoming into them, but not the anchor body itself.
Is the TFE anchor happy with resistance fire?
Yes, the TFE anchor holds approval resistance official fire classification R120 (approved by Efectis), which ensures keeping structural integrity and load capacity for two hours in extreme fire scenarios.
What size of TFE is happy to use the TFE (Spancrete)?
The official approved measurements are TFE5 (reported 5 mm) and TFE8 (CIED 8mm), which correspond to the thickness of the thin lower shell of the sphinc ceiling without damaging the internal loops.
What is the advantage of the TFE anchor at high work and hanging over the head?
The installation is carried out in one direct bell – drilling, cleaning and screwing with the help of a suitable Impett key, without the need for additional tools to open the sleeve as required in traditional pelvics. This significantly reduces the effort of workers and fatigues in prolonged labor on fibroids.
Can TFE be used in multiple points of hanging systems?
Yes – TFE anchor is approved for use in multiple points (Redundant Non-structural Systems), suitable for infrastructure control, fire-fighting pipeline, modular partitions and electrical and air conditioning.


Frequently Asked Questions

What is the difference between a concrete screw and a chemical anchor?

A concrete screw cuts its thread directly into the drilled hole and forms a mechanical lock – with no chemicals. A chemical anchor uses a resin (epoxy, vinylester) that fills the hole.

Concrete screw advantage: installation speed and re-usability. Chemical anchor advantage: higher tensile performance in wide holes and weak concrete.

Can a concrete screw be removed and re-installed?

Yes – this is one of the central advantages of the TF. It can be removed, adjustments made, and re-installed without materially compromising the strength of the anchorage. That makes it the ideal solution for anchoring formwork legs.

Is the concrete screw suitable for cracked concrete?

Yes – the TF holds an explicit ETA approval for use in cracked concrete, with calculated load values for both conditions. This is a critical requirement for projects built to European and Israeli standards.

What is the difference between TF and TH?

The two are technically and geometrically identical. The only difference is the coating: TF is zinc plated, for indoor use; TH carries the Atlantis C3-M coating with corrosion resistance C3 and above, for outdoor, coastal and humid environments.

Go to the full TH concrete screw page →

What is the difference between TF and TX?

The TF is made of grade 8.8 steel with a coating, while the TX is made of solid SS316 (A4) stainless steel. The TX suits especially aggressive environments: marine, swimming pools, hospitals, the food industry and chemical conditions.

Go to the full TX stainless steel page →

Is the TF concrete screw approved for earthquakes?

Yes – the TF holds a seismic approval in categories C1-C2. In Israel, projects in the Jordan Valley, the Dead Sea area, the Negev and other regions are considered at-risk zones and require anchors with this approval.

Which lengths and diameters are available?

The TF is available in diameters of 5, 6, 8, 10, 12, 14, 16 and 18 mm, in lengths matched to each diameter. For example, the TFE6 needs a ⌀ 5 mm hole, and the TFE8 needs ⌀ 6.5 mm. The full range is in the official technical data sheet.

Is the TFE anchor approved for fire resistance?

Yes – the TFE holds an official fire-resistance approval in class R120 (approved by Efectis), guaranteeing structural integrity and load-bearing capacity for two continuous hours in extreme fire scenarios.

Which TFE sizes are approved for hollow-core (Spancrete) slabs?

The only officially approved sizes are TFE5 and TFE6, matched to the thin lower shell of a Spancrete slab without damaging the internal prestressing strands.

What is the difference between the TFE and the HC and HE-HC female anchors?

The TFE is a male anchor that threads directly into the concrete, forming an internal mechanical thread, and can be fully removed and re-used. The HC and HE-HC are female sleeve / hammer-set anchors that stay permanently in the base material after installation – only the male bolt that screws into them can be removed and replaced, not the anchor body itself.

Need to confirm the screw suits your project? Tell us the base material, the load and the environment – our engineering team will calculate and match the diameter, length and coating.

Contact our engineers