Simpson HHDQ11-SDS2.5 15 1/8 Heavy Holdown Quick-Install W/Screws - Gray Paint Quik Drive Steel Decking Systems Compact head - creates a

Compact head - creates a low-profile finish that blends into the surface

lasting hold in hardwoods and treated lumber

Sold as a convenient 4-piece set

Web Stiffeners are required for all I-joists used with these hangers

Simpson HHDQ11-SDS2.5 15 1/8 Heavy Holdown Quick-Install W/Screws - Gray Paint Quik Drive Steel Decking Systems Compact head - creates aThe Simpson Strong Tie HHDQ Holdown is a heavy duty structural holdown designed to anchor wood shearwalls and posts to concrete foundations. It transfers extreme uplift and overturning forces from wood framing into the foundation, helping protect structures in high wind and high seismic regions. Built for maximum uplift resistance, the HHDQ series delivers higher load capacity than standard holdowns while maintaining a practical installation