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            CONCRETE INSERTS





              WOOD-KNOCKER II+          Cast-In- Place Concrete Inserts  WOOD-KNOCKER FORM INSERT
                                   ®
             Wood-Knocker concrete inserts are specifically designed to provide hangar  ITEM     COLOR                                 BOX
                                                                        CODE     DESCRIPTION     CODE      QTY.
             attachments for mechanical, electrical, plumbing (MEP)     DEW PFM2521100      1/4" Wood-Knocker II+   Brown   100
             and fire protection. Wood-Knocker II concrete inserts are  DEW PFM2521150 3/8" Wood-Knocker II+  Green   100
                                                                        DEW PFM2521200 1/2" Wood-Knocker II+   Yellow   100
             installed onto wooden forms used to support newly
                                                                        DEW PFM2521250 5/8" Wood-Knocker II+   Red   100
             poured concrete floor slabs, roof slabs or walls. When the  DEW PFM2521300 3/4" Wood-Knocker II+   Purple   100
             forms are stripped, the color-coded flange is visibly em-  DEW  PFM2521350 3/8-1/2" Wood-Knocker Il+  Gray   100
             bedded in the concrete surface. The inserts allow the at-             Multi Insert
             tachment of steel threaded rod or threaded bolts in sizes
             ranging from 1/4" to 3/4" in diameter. The hex impact plate offers resistance  INSTALLATION SPECIFICATIONS
             to rotation within the concrete as a steel threaded rod or threaded bolt is
             being installed.                                                                   Nominal Rod/Anchor Size
                                                                       Dimension          1/4"    3/8"   1/2"  5/8"  3/4"
                                                                       Insert Thread Length (in.)   3/8   5/8   11/16   15/16   1-1/8
                                                                       Plastic Flange Dia. (in.)   2-3/8   2-3/8   2-3/8   2-3/8   2-3/8
              FEATURES                                                 Plastic Flange Thickness (in.)   1/8   1/8  1/8   1/8   1/8
                                                                       Thread Size, UNC   1/4-20   3/8-16   1/2-13   5/8-11   3/4-10
             • Fast and simple to install, low installed cost
                                                                       Overall Length (in.)   2   2      2     2     2
             • Wood-Knocker can be installed in lower flute of steel deck as little as   Break-Off Nail Length (in.)   3/4  3/4   3/4   3/4   3/4
              1.5" topping thickness                                   Steel Flange Thickness (in.)   1/8   1/8   1/8  1/8   1/8
             • Hex head does not rotate when set
             • All sizes suitable for tension and shear loading
             • Color coded by size for simple identification            INSTALLATION
             • Wood-Knocker can be installed in wood form pours only 3.5" thick
                                                                        Prior to pouring concrete over the wood form, place the Wood-Knocker
             • Insert design allows for full thread engagement          concrete insert (break-off nails down) on the surface of the wood form
                                                                        at the desired location. Strike the impact plate of the insert with a
                                                                        hand held hammer, until the plastic color-coded flange is flush with
              GENERAL APPLICATION & USES                                the wood surface. When all inserts are installed, concrete pouring
                                                                        may commence.
             • Hanging Pipe and Sprinkler Systems
             • HVAC Ductwork and Strut Channels                         After the wood forms are removed, the three break-off nails and color
                                                                        coded flange are left exposed. Carefully remove any unbroken nails
             • Suspending Trapeze and Cable Trays
                                                                        by swiping with a hammer. Eye protection should be worn when
             • Mechanical Unit Overhead Utilities                       removing the break-off nails. The appropriate diameter steel rod or
             • Conduit and Lighting System                              threaded bolt can be inserted into the opening of the flange and
             • Seismic Loading and Cracked Concrete                     screwed into the internally threaded insert.
                                                                        Minimum thread engagement should be one anchor diameter.
                                                                        Concrete should be allowed to properly cure and achieve its design
                                                                        compressive strength before loading the rod or threaded bolt with
               APPROVALS & LISTINGS                                     the intended assembly.
             • International Code Council, Evaluation Service (ICC-ES), ESR-3657 for concrete.  For safety purposes, it is best to wait until the insert is ready to be put
              Approved for seismic and wind loading (all diameters)     in service before screwing the steel threaded rod into place.
             • Tested in accordance with ASTM E 488 and ICC-ES AC446 for use in concrete   Note: UL listing for 5/8" Wood-Knocker is for 8" pipe maximum.
              under the design provisions of ACI 318 (Strength Design method)
             • Underwriters Laboratories (UL Listed) - File No. EX1289, see listing for sizes. Also UL
              listed and recognized for use in air handling spaces.
             • Code compliant with the 2015 IBC, 2015 IRC, 2012 IBC, 2012 IRC, 2009 IBC, and 2009 IRC
             • Evaluated and qualified by an accredited independent testing laboratory for recognition
              in cracked and uncracked concrete
             • FM Approvals (Factory Mutual) – File No. J.I. 3015153










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