MTH Wedge Anchor

Wedge anchor for uncracked concrete with European ETA7 approval — a wide range of embedment depths and very high pull-out strength.

ETA7 — Uncracked concrete50-year service lifeStatic & quasi-static loadsWide range of embedment depthsZinc-plated carbon steel

The Adit wedge anchor family

Choose the right wedge anchor for your concrete condition, environment and approval requirements.

MTP-XCracked concrete · ETA1 · Seismic MTP-GHot-dip galvanized · Outdoor & marine MTP A4Stainless steel SS316 · Cracked concrete MTHUncracked concrete · ETA7 MTH A4Stainless steel SS316 · Uncracked ORAZinc-plated · Standards Institute lab test

Technical specification

Property	MTH — wedge anchor for uncracked concrete
Technology	Wedge anchor (mechanical expansion)
Corrosion protection	Zinc electroplated (cold galvanized)
Cracked concrete	No
Seismic	No
Loads	Static & quasi-static (including wind loads)
Service life approval	50 years
Standards	European ETA7 approval for uncracked concrete

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Proven in the field — selected projects in Israel

The ADIT MTH wedge anchor is installed in hundreds of projects across Israel.

HaMashbir, Jerusalem

Rubinstein Towers Tel Aviv

Yavne Amphitheater

Redesign Haifa

Park Ofer Petah Tikva

Yavne Malkey Construction

Balkind Street Tel Aviv

Hamelacha Commerce & Offices Netanya

Instructional & field-test videos

What is a wedge anchor?

A wedge anchor is a mechanical anchor for concrete used to fasten structures, installations and equipment to concrete through a mechanical expansion mechanism. After the hole is drilled and the nut is tightened, the expansion clip opens inside the concrete and creates a strong, secure anchorage capable of carrying high pull-out and shear loads.

Wedge anchors have been one of the most widely used fastening solutions in the construction and industrial sectors for decades, thanks to their simple installation, high reliability and ability to carry significant loads. The ADIT MTH wedge anchor is designed for anchoring in uncracked concrete and is suitable for a wide range of professional applications.

Advantages of the MTH wedge anchor

Fast and simple installation
High load-bearing capacity
Economical and reliable solution
Suitable for a wide range of applications
Available in a wide range of diameters and lengths
Allows immediate loading after installation

When to choose MTH?

Please note: MTH is approved for uncracked concrete only, and carries no seismic approval. If the design requires cracked concrete or earthquake resistance, switch to MTP-X.

Uncracked concrete: European ETA7 approval, with calculated and approved load values.
Wide range of embedment depths: a broad selection of anchoring depths for flexibility in design and on site.
Very high pull-out strength: among the market leaders in Israel for pull-out values.
Wind loads: approved for static and quasi-static loads, including wind loads.
50-year service life: official approval for a half-century design life.

Cracked versus uncracked concrete

What is cracked concrete (in the anchoring field)? Cracked concrete is an engineering condition in which there is a high probability of a crack of up to 0.3 mm appearing where the wedge anchor is installed after installation. This crack can develop as a result of pull-out loads in the concrete itself or as a result of the force applied by the anchor. Design offices commonly define all concrete as cracked to be on the safe side, even though this is not necessarily required.

When should you choose a wedge anchor for cracked concrete? A wedge anchor for cracked concrete should be chosen whenever the engineering design defines the connection zone as “cracked concrete”. This type of anchor is equipped with a special expansion mechanism that adapts to movements in the concrete, thereby ensuring the anchorage remains stable, safe and durable over time, even if the crack widens under load.

Wedge anchor — why choose us?

European standard and uncompromising quality: rigorous manufacturing that guarantees maximum durability and compliance with the strictest standards in the construction industry.
Safe and accurate installation: the wedge anchor is equipped with a unique system that makes it easy to verify embedment depth, using the marking stamped on the anchor head (preventing human error).
Design flexibility: a very wide range of embedment depths that adapts to any structural requirement.
Outstanding performance at edge distances: the anchor structure provides excellent properties in connections close to the edge, enabling efficient design even in tight locations.
Cost-effective: strong, high-quality steel at a competitive price and low cost, enabling significant savings.
Environmental durability: the anchor comes with a high-quality cold-galvanized coating that ensures long-term protection.
Knowledge, experience and engineering support: the most experienced team in Israel with the most generous service. Proven in the field in hundreds of complex projects across Israel (luxury towers, shopping malls, infrastructure and more).

Common uses

The ADIT MTH wedge anchor is especially suitable when a strong, fast mechanical connection to concrete is required. It is used for anchoring:

Curtain walls and cladding connections
Safety railings and balconies
Steel structures and metal frames
Machinery and industrial equipment
Ducts and utility systems
Storage installations and shelving
Equipment bases and engineering installations
Installation of posts and pergolas
Fixing electrical cabinets, lighting systems and heavy equipment

How to choose the right wedge anchor?

Choosing the right wedge anchor depends on several factors, such as the type of concrete, the magnitude of the loads, edge distances, spacing between anchors and the standards required by the project. In projects that require anchoring in cracked concrete, seismic resistance or special approvals, it is recommended to choose an anchor with the appropriate ETA approvals for the specific application.

The ADIT MTH wedge anchor is a professional, reliable and technologically advanced solution for anchoring in uncracked concrete, delivering a combination of high strength, fast installation and proven reliability across a wide range of applications.

Frequently asked questions

How do you install a wedge anchor in concrete?

Installation is simple and fast: drill a hole in the concrete with a diameter equal to the anchor diameter, clean the drilling dust thoroughly out of the hole, drive the anchor into place with a hammer, and finally tighten the nut with a torque wrench to the value recommended by the manufacturer. Tightening causes the expansion clip to open and lock into the concrete.

What is the difference between a wedge anchor and a jumbo sleeve anchor?

While both work on the principle of mechanical expansion, a wedge anchor requires a drilling diameter that matches the thread diameter of the bolt exactly, and it is generally intended for higher loads. A jumbo sleeve anchor is wrapped in a sleeve and therefore requires drilling at a diameter larger than the bolt itself.

Can a wedge anchor be used in a block wall?

No. Wedge anchors are designed to work only in cast, solid concrete. Using a wedge anchor in hollow blocks or aerated concrete can crush the block from the inside and will not provide the required anchorage. For blocks, use chemical anchors, dedicated block anchors or suitable plastic plugs.

Can a wedge anchor be removed after installation?

Wedge anchors are designed for permanent installation and are very difficult to impossible to pull out after tightening without damaging the concrete. If an installation needs to be removed, the common practice is to remove the nut and cut the protruding thread with a cutting disc (angle grinder) down to flush with the concrete surface.

What is the difference between MTP and MTH?

MTP (ETA1) is approved for cracked and uncracked concrete, for seismic C1-C2, for sprinklers and for dynamic loads. MTH (ETA7) is approved for uncracked concrete only, with no seismic approval. If the design requires cracked concrete or seismic resistance, MTP is mandatory.

Which finish should I choose?

Cold galvanized (MTP-X / MTH) for dry indoor environments. Thermal-diffusion galvanizing 30-40 micron (MTP-G) for outdoors, seashore and humidity. Stainless steel SS316 (MTP A4 / MTH A4) for particularly aggressive environments — pools, food and chemical industries.

What is a wedge anchor?

A wedge anchor is an expansion anchor: you drill a hole, insert the anchor through the fixture, and tighten the nut. Tightening pulls the cone into the sleeve, the sleeve expands and locks the anchor against the wall of the drilled hole.

Not sure which wedge anchor is right? Tell us the concrete type, the load and the environment — we will recommend the correct model, diameter and finish.

Talk to our engineers