Holdown HDU2-SDS 2.5

The Simpson Strong-Tie Holdown HDU2-SDS 2.5 is a predeflected, heavy-duty connector designed to resist uplift and lateral forces in wood-frame construction. Fabricated from 14-gauge, G90-galvanized steel, this holdown delivers reliable performance in shearwalls, braced-wall panels and other load-bearing applications. Its integrated predeflected seat eliminates service-load deflection, while the included Strong-Drive® SDS screws ensure proper fastening without the need for additional washers or stud bolts.

Key Features

• Predeflected seat design eliminates deflection under load
• Supplied with (6) 1/4″ × 2-1/2″ Strong-Drive SDS heavy-duty connector screws and (1) crescent washer
• 14-gauge, G90-galvanized steel construction for corrosion resistance
• No stud bolts to countersink—simplifies installation
• Requires no additional washers for code-compliant performance
• Installs quickly with a low-speed, high-torque drill and 3/8″ hex-head driver

⚠️ WARNING: This product can expose you to Tetrabromobisphenol A known to the State of California to cause cancer and Epichlorohydrin known to cause birth defects or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.