Product Description
Simpson HDU5-SDS2.5HDG HDU 13-3/16 in. Hot-Dip Galvanized Predeflected Holdown with Strong-Drive SDS Screws is an engineered holdown connector from Simpson Strong-Tie, designed for use in shearwalls, braced-wall panels, and other lateral applications in wood construction. The HDU5-SDS2.5HDG features a predeflected body that virtually eliminates deflection under load due to material stretch, and it arrives ready to install with Strong-Drive SDS Heavy-Duty Connector screws included - making it a reliable, high-performance solution for demanding structural connections.
Key Features
- Predeflected body virtually eliminates deflection due to material stretch
- Uses SDS screws, which install easily, reduce fastener slip and provide a greater net section area of the post compared to bolts
- SDS screws are supplied with the holdowns to ensure proper fasteners are used
- No stud bolts to countersink at openings
- Height: 13-3/16 in.
- Made from 14-gauge steel
- Hot-dip galvanization (HDG) offers extra corrosion resistance for exterior and treated-wood applications
Specifications
- Model Number: HDU5-SDS2.5HDG
- Height: 13-3/16 in.
- Gauge: 14
- Coating: Hot-Dip Galvanized
- Finish: Hot-Dip Galvanized
- Install With: Install with 5/8 in. anchor bolt and 1/4 in. x 2-1/2 in. Strong-Drive SDS Heavy-Duty Connector screws (included)
- Country of Origin: United States
What's Included
Each pack contains (1) HDU5-SDS2.5HDG Predeflected Holdown, (14) 1/4 in. x 2-1/2 in. Strong-Drive SDS Heavy-Duty Connector screws and (1) crescent washer.
Downloads and Resources
Frequently Asked Questions
- What does "predeflected" mean and why does it matter?
- The HDU5-SDS2.5HDG holdown is pre-deflected during the manufacturing process, which virtually eliminates deflection under load due to material stretch. This means the connector maintains tighter performance tolerances once installed, providing a more secure and stable connection in shearwalls and lateral applications.
- Why are SDS screws used instead of bolts?
- Strong-Drive SDS Heavy-Duty Connector screws install easily, reduce fastener slip, and provide a greater net section area of the post compared to bolts. They also eliminate the need to countersink stud bolts at openings, simplifying the installation process.
- Is this holdown suitable for exterior or treated-wood applications?
- Yes. The hot-dip galvanized (HDG) coating provides extra corrosion resistance, making the HDU5-SDS2.5HDG well suited for exterior environments and applications involving treated wood where standard coatings may not offer sufficient protection.
- What fasteners and hardware are needed to install this holdown?
- Installation requires a 5/8 in. anchor bolt (not included) and 1/4 in. x 2-1/2 in. Strong-Drive SDS Heavy-Duty Connector screws. The SDS screws and a crescent washer are supplied with the holdown to ensure the correct fasteners are always used.
Note: Product dimensions and/or screw or bolt holes may differ from picture. Please see item description for specifications.
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