Simpson HHDQ11-SDS2.5 15 1/8 Heavy Holdown Quick-Install W/Screws - Gray Paint Metal To Metal Roofing Screws Box-thread design – Smooth driving

Box-thread design – Smooth driving with reliable holding strength

while curved collation makes for consistent feeding during larger projects

Retrofits & Remodels: Provides a compliant solution for updating older structures with fire-rated specs

subfloor to wood or steel

Winged Design: Wings ream a clearance hole through the top panel or substrate to prevent material from riding up the shank

Simpson HHDQ11-SDS2.5 15 1/8 Heavy Holdown Quick-Install W/Screws - Gray Paint Metal To Metal Roofing Screws Box-thread design – Smooth drivingThe 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