15-1/8" Simpson HHDQ11SS-SDS2.5 Heavy Holdown Quick-Install W/ SDS Screws - Stainless Steel MASA/MASAP Mudsill Anchors Avoid mixing with non-stainless fasteners

Avoid mixing with non-stainless fasteners to prevent staining or galvanic reaction

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ensuring durability and corrosion resistance

making it ideal for exterior and industrial use

15-1/8" Simpson HHDQ11SS-SDS2.5 Heavy Holdown Quick-Install W/ SDS Screws - Stainless Steel MASA/MASAP Mudsill Anchors Avoid mixing with non-stainless fastenersThe 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