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Moment Frame Anchorage Installation Accessories

Strong Frame Moment Frame

Extension Kit

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 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.

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
extensionkit
Extension Kit
extensionApplicationSectionView
Extension Application Section View
(MFSL solution)