Simpson HHDQ11-SDS2.5 15 1/8 Heavy Holdown Quick-Install W/Screws - Gray Paint Quik Drive Steel Decking Systems Self‑Drilling Efficiency: #3 drill point

Self‑Drilling Efficiency: #3 drill point eliminates the need for pre‑drilling into steel studs or track

lasting hold in hardwoods and treated lumber

Wings create a clearance hole in the top material so the shank will not ride up

they feature a hot-dip galvanized finish for enhanced corrosion resistance and are available in black powder coat by request

Simpson HHDQ11-SDS2.5 15 1/8 Heavy Holdown Quick-Install W/Screws - Gray Paint Quik Drive Steel Decking Systems Self‑Drilling Efficiency: #3 drill pointThe 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