Simpson Strong-Tie HHDQ11-SDS2.5 15 1/8 Heavy Holdown Quick-Install with Screws - ZMAX Galvanized Gray Paint
Simpson Strong-Tie HHDQ11-SDS2.5 15 1/8 Heavy Holdown Quick-Install with Screws - ZMAX Galvanized Gray Paint!
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HDU/HDUE/HDQ/HHDQ Holdowns
Simpson Strong-Tie HHDQ11-SDS2.5 15 1/8 Heavy Holdown Quick-Install with Screws - ZMAX Galvanized Gray Paint
Specifications
FASTENERS INCLUDED
(24) 1/4" x 2-1/2" SDS Screws
The 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 footprint. The included SDS structural screws provide a strong, code-compliant attachment to wood studs or post assemblies, streamlining field installation.
Featuring a compact heavy design, this structural connector provides high-strength performance without significantly increasing wall width.
Key Features:
- Maximum Load Capacity: Engineered for high-demand uplift and overturning forces.
- SDS Screws Included: Pre-engineered structural screws provide fast, reliable installation.
- Compact Profile: Delivers heavy-duty performance in a space-efficient design.
- Shearwall Anchorage: Secures wall ends and vertical framing members to foundations.
- Finish Options: Available in corrosion-resistant finishes for interior or exterior use.
Add the Essentials
Complete your order with these essentials, compatible with:
Simpson Strong-Tie HHDQ11-SDS2.5 15 1/8 Heavy Holdown Quick-Install with Screws - ZMAX Galvanized Gray Paint
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Continue Browsing
HDU/HDUE/HDQ/HHDQ Holdowns
Add the Essentials
Complete your order with these essentials, compatible with:
Simpson Strong-Tie HHDQ11-SDS2.5 15 1/8 Heavy Holdown Quick-Install with Screws - ZMAX Galvanized Gray Paint
My Cart:
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Holdowns and Tension Ties Reinforce Structural Connections
Holdowns and Tension ties are designed to strengthen critical structural connections where uplift and lateral forces occur. Commonly used in shear walls, deck connections, and wood framing, holdown anchors and tension ties help transfer loads from framing members to the foundation, reducing movement and improving overall structural stability.
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Precision Fit for Critical Framing Connections
Tension ties and holdown connectors feature prepunched holes that allow accurate fastener placement and proper alignment during installation. These connectors reinforce high-load framing areas where standard fasteners alone may not provide sufficient strength.
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Corrosion-Resistant for Outdoor Durability
Holdown anchors and deck tension ties are often installed in exterior environments where moisture and treated lumber are present. Many Simpson Strong- Tie connectors feature corrosion-resistant finishes like ZMAX or stainless steel to help maintain long-term strength and performance.
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We are on a mission to expand our national reach—offering more product selection and faster delivery times. So far we’ve made remarkable progress in our expansion efforts, effectively doubling our capacity by adding a new 47,000 sq. ft. warehouse in Simpsonville, South Carolina, in addition to our existing 60,000 sq. ft. facility in Urbana, Iowa.
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We pride ourselves on delivering a user-friendly, high quality experience online and over the phone. Our knowledgeable team of experts is readily available via phone to assist with product questions and custom pricing inquiries. We’re available Monday thru Friday from 7:00 AM – 5:00 PM CST. We look forward to supporting you on your next job.
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We partner with trusted manufacturers in the fasteners industry to bring our customers a selection of over 10,000 different products. Fasteners Plus is one of only four Certified Platinum E-Commerce Vendors of Simpson Strong-Tie products, one of the largest suppliers of high-quality structural building products in the world.
