Simpson HDU4-SDS2.5 10-15/16" Predeflected Holdown w/Screws Wire Coil Framing Nails Fasteners: Use the specified Strong-Drive

Fasteners: Use the specified Strong-Drive SDS Heavy-Duty Connector screws or nails for proper load distribution and strength

Annular ring shank increases pull-out resistance to provide a secure attachment that reduces cupping of siding boards

or bracing scenarios

The Simpson ABU1212Z 12x12 Adjustable Post Base - Zmax Finish is designed to securely attach wood posts to existing concrete

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Simpson HDU4-SDS2.5 10-15/16" Predeflected Holdown w/Screws Wire Coil Framing Nails Fasteners: Use the specified Strong-DriveSimpson Strong Tie HDU Holdowns are pre deflected to virtually eliminate deflection under load due to material stretch. The Strong Tie HDU4 SDS2. 5 pre deflected holdown is installed with Simpson Strong Drive SDS heavy duty connector screws which are included with the holdown. Need more corrosion resistance? See the Hot Dip Galvanized HDU4. HDU Special Features Holdown designs virtually eliminate deflection due to material strech. Uses Strong Drive