Mechanical Anchoring Solutions

Hilti’s mechanical anchor portfolio offers something for every designer from low capacity removable screw and sleeve anchors to medium-duty wedge anchors to high capacity expansion and undercut anchors.

Commonly known as concrete anchors, though many are also suited for installation in masonry, mechanical anchors do not have the installation and in-use temperature restrictions of their adhesive anchor counterparts. Additionally, mechanical anchors can be loaded immediately after installation whereas an adhesive anchor must be fully cured before loading. This flexibility offers design freedom to the specifier and added productivity to the contractor.

Hilti mechanical anchoring solutions

Why choose mechanical anchors on your project?

While adhesive anchors transfer loads to the base material via the bond of the adhesive element, post-installed mechanical anchors transfer the load to the base material through bearing, friction or keying.

Wedge anchors transfer loads by friction, and to some extent bearing / keying. Examples of these anchors are the Kwik Bolt TZ2, Kwik Bolt 1 and the HSL4. Screw anchors are inserted into a drilled hole that is typically smaller in diameter than the actual anchor. The loads are then transferred to the base material by keying. An example of a screw anchor is the Kwik HUS-EZ. Undercut anchors derive their holding strength from the mechanical bearing interlock provided from the undercutting of the concrete at or near the bottom of the hole achieved either by a special tool or by the anchor itself during installation. An example of an undercut anchor is the HDA. 

Understanding how different mechanical anchors transfer loads to which base materials is key to understanding which anchors provide the appropriate holding values for your loading situation and knowing which one to select for your next project design.

Additional Resources

structural engineering design software

Structural Engineering Design Software

More easily and accurately calculate, model, and validate anchor fastening and structural designs with BIM integrated engineering solutions.

Learn more
specifications and cad details

Specs / CAD Details

Incorporate Hilti anchor, rebar, decking, modular systems, and direct fastening products into your designs.

Learn more
approvals and reports for Hilti products

Approvals and Reports

Download the latest product qualifications by building code, city, state, or industry.

Learn more
technical data, tech guides, load tables

Technical Data

Product technical data including load tables.

Learn more
specifications and cad details

White Papers

Articles that educate engineers and specifiers on trending trade topics.

Learn more
Ask Hilti

Ask Hilti

An online community offering expert advice from top engineering professionals.

Visit Ask Hilti
continuing education

Continuing Education

Educational programs to improve your knowledge of innovative technical solutions for the construction industry.

Learn more


Preparing submittal documentation for the wide variety of Hilti solutions has never been so easy.

Learn more