New Product News: Mini-Undercut+™ Internally Threaded Undercut Anchor by DEWALT

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If you are looking for a cracked concrete tested alternative to a mini dropin anchor, we have an ideal solution.  

DeWalt's new Mini-Undercut+ anchor is an internally threaded, self-undercutting anchor designed for performance in cracked and uncracked post-tension concrete (PT slabs), hollow-core precast concrete, normal-weight concrete, sand-lightweight concrete and concrete over steel deck.

The Mini-Undercut+ anchor is installed into a pre-drilled hole with a power tool and a setting tool. The result is an anchor which can provide consistent behavior at shallow embedments as low as 3/4 of an inch. After installation a steel element is threaded into the anchor body.

Image of DeWalt's new Mini-Undercut+ anchor

In Stock For Immediate Shipment


  • Ideal for precast hollow-core plank and post-tensioned concrete slabs
  • Cracked concrete tested alternative to a mini dropin anchor
  • Redesigned ANSI carbide stop bit with enlarged shoulder for accurate depth
  • Anchor design allows for shallow embedment as low as 3/4 of an inch
  • Internally threaded anchor for easy adjustment and removability of threaded rod or bolt
  • Drill and drive the anchor with one tool for fast anchor installation

Image of Mini-Undercut+ anchor


  • International Code Council, Evaluation Service (ICC-ES), ESR-3912 for Concrete and Hollow-Core precast slabs, Code Compliant with the 2015, IBC, 2015 IRC, 2012 IBC, 2012 IRC, 2009 IBC, and 2009 IRC.
  • Qualified according to ACI 355.2 (including ASTM E 488) for use in concrete
  • FM Approvals (Factory Mutual) – File No. J.I. 3059197


Mini-Undercut+ Data SheetMini-Undercut+ SubmittalUnistrut Service Company offers a complete line of DeWalt Mechanical and Adhesive Anchors in a wide range of sizes to safely and securely attach Unistrut structural members to concrete, block, stone, masonry, and other solid base materials. To request pricing information or to discuss a concrete anchor application, contact Unistrut Service Company for further assistance.

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