The Simpson HDUE5-SDS3 11-5/16 in. Galvanized Predeflected Holdown is engineered by Simpson to deliver exceptional overturning resistance in lateral-force-resisting applications, including shearwall connections, braced wall panels, and other wood-framed structural assemblies where controlled movement and reliable load transfer are critical. Built from 14-gauge steel with a G90 zinc galvanized finish and shipped complete with Strong-Drive SDS Heavy-Duty Connector screws and a crescent washer, this holdown is ready to install right out of the box.

Key Features

• Predeflected seat - reduces deflection under load, helping the connection maintain tighter, more controlled movement during lateral force events for improved structural performance
• Overlapping back plate - increases fastener strength and shear values, helping prevent post splitting and contributing to higher load capacity
• Optimized screw patterns - reduce splitting at the end of the post and maximize individual fastener capacity, protecting structural members while improving connection efficiency
• Extruded seat - adds a greater cross-sectional steel section for added strength, providing a more robust bearing surface under heavy uplift loads
• Teardrop holes - allow higher and more even distribution of load across fasteners, reducing stress concentrations at any single point
• 14-gauge steel construction - delivers a strong, rigid connector profile suited to the demanding requirements of modern residential structural applications
• G90 zinc galvanized finish - provides corrosion resistance, making this holdown suitable for use in treated-lumber framing environments commonly found in residential construction
• Includes Strong-Drive SDS Heavy-Duty Connector screws and crescent washer - eliminates the need to source separate fasteners, simplifying procurement and keeping the installation process straightforward

Why This Product

• Engineered to minimize movement where it matters most - the predeflected seat and overlapping back plate work together to reduce deflection and resist post splitting, two of the most common performance concerns in holdown applications
• Fastener-ready for faster installation - the included Strong-Drive SDS screws and crescent washer mean crews can move from layout to installation without waiting on additional hardware, saving time on the job site
• Multiple design details address splitting and load distribution simultaneously - the optimized screw patterns and teardrop holes work together to protect wood posts and spread load evenly, reducing the risk of fastener-zone failures under demanding lateral loads
• Built and finished for long-term reliability - domestic 14-gauge steel with a G90 galvanized coating means this connector holds up against the corrosive conditions that treated lumber and exterior-adjacent framing environments can present

Specifications

• Model Number: HDUE5-SDS3
• Height: 11-5/16 in.
• Width: 2-7/8 in.
• Gauge: 14
• Coating/Finish: Zinc Galvanized, G90
• Seat Depth: 3-3/8 in.
• Centerline: 1-3/8 in.
• Screw Offset: 1-1/2 in.
• Country of Origin: United States
• Installation: Install with 5/8 in. anchor bolt and (10) 1/4 in. x 3 in. Strong-Drive SDS Heavy-Duty Connector screws (included)

Approved Applications

• Securing shearwalls in wood construction
• Braced wall panel connections
• Lateral-force-resisting applications in residential wood structures

What's Included

Each pack contains (1) HDUE5-SDS3 Galvanized Predeflected Holdown, (10) 1/4 in. x 3 in. Strong-Drive SDS Heavy-Duty Connector screws and (1) crescent washer.

Frequently Asked Questions

What is the purpose of the predeflected seat on the HDUE5-SDS3?

The predeflected seat is specifically designed to reduce deflection under load, helping the holdown maintain tighter, more controlled movement during lateral force events and improving overall structural performance.

What fasteners are required to install the HDUE5-SDS3?

The HDUE5-SDS3 installs with a 5/8 in. anchor bolt and (10) 1/4 in. x 3 in. Strong-Drive SDS Heavy-Duty Connector screws, which are included with the holdown.

How does the overlapping back plate benefit the HDUE5-SDS3?

The overlapping back plate increases fastener strength and shear values, helping prevent post splitting and contributing to higher load capacity compared to designs without this feature.

What coating does the HDUE5-SDS3 have, and why does it matter?

The HDUE5-SDS3 is coated with Zinc Galvanized, G90 finish, which provides corrosion resistance to help ensure long-term durability in demanding construction environments.

Note: Product dimensions and/or screw or bolt holes may differ from picture.