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Strong Frame® Anchorage Extension Kit 

Strong Frame® Anchorage Extension Kit

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The Strong Frame anchorage extension kit extends the anchor rods in the MFSL and MFAB anchorage assemblies to allow for anchorage in tall stemwall applications where embedment into the footings is required. Made from ASTM F1554 Grade 36 rod or ASTM A449 rod, the extension kits feature heavy hex nuts that are fixed at the correct position to go underneath the shear lug or template and a “No Equal” (≠) head stamp for identification. Coupler nuts are included with each kit. Kits available with hot-dip galvanization for corrosion protection when required, lead times apply.

Installation

MFSL Installation

  1. Remove shear lug and template from the anchorage assembly.
  2. Insert extension rods and fasten with nuts provided.
  3. Cut bottom of rod to desired length so that the shear lug is flush with top of concrete.
  4. Install original anchor rods onto the bottom of the extension rods using the coupler nuts (provided). Tighten rods so that both ends are visible in the Witness Hole™ openings.

MFAB Installation

  1. Remove template from the anchorage assembly.
  2. Insert extension rods and fasten with nuts provided.
  3. Cut bottom of rod to desired length so that the fixed nut is flush with top of concrete.
  4. Install original anchor rods onto the bottom of the extension rods using the coupler nuts (provided). Tighten rods so that both ends are visible in the Witness Hole openings.

Related Literature

Product Information Table

Model No. Anchor Rod Length (in.) Minimum Embedment, Le (in.) Coupler Nut
Quantity Diameter (in.)
MF-ATR5EXT-2 2 5/8 36 31 CNW 5/8
MF-ATR5EXT-2HS 2 5/8 36 31 HSCNW 5/8
MF-ATR6EXT-4 4 3/4 36 31 CNW 3/4
MF-ATR6EXT-4HS 4 3/4 36 31 HSCNW 3/4
MF-ATR8EXT-4 4 1 36 31 CNW1
MF-ATR8EXT-4HS 4 1 36 31 HSCNW1

Code Reports & Compliance

Drawings

PDF DWG DXF RFA IFC SAT