DeWalt® Mini-Undercut+™ 3/8”-16 Internally Threaded Undercut Anchor

Unistrut Service Company

DeWalt® Mini-Undercut+™ 3/8”-16 Internally Threaded Undercut Anchor

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Part No.:Mini-Undercut+™ Internally Threaded Undercut Anchor-Box of 100 Pieces PFM2111820

Manufacturer: DeWalt

The Mini-Undercut+ anchor is an internally threaded, self-undercutting anchor designed for performance in cracked and uncracked concrete. Suitable base materials include 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.


  • 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


  • Tension zones, seismic and wind loading applications
  • Suspended Conduit
  • Fire Sprinkler & pipe supports
  • Cable Trays and Strut
  • Suspended Lighting


  • 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

            Mfr. Cross Reference

            • Hilti HDI Drop-In
            • Red Head RL Drop-In


            Mini-Undercut+ Specs

            Installation Manual

            Power Anchor Selection Chart

            Sell Sheet