Product Overview
HHDQ11SS-SDS2.5 Heavy Holdown, Quick-Install
The HHDQ is designed for extra-high loads and provides ease of installation. This heavy holdown comes with Strong-Drive SDS Heavy-Duty Connector screws, which install easily, reduce fastener slip and provide a greater net section than bolts. The HHDQ is installed directly on the sill plate and is suitable for back-to-back applications where eccentricity is a concern.
Key Features
- Strong-Drive SDS Heavy-Duty Connector screws are supplied with the holdowns to ensure proper fasteners are used
- Screws may be installed either flush or raised off the mudsill without a reduction in load value
- No stud bolts to countersink at openings
Material
- Body: 7 gauge, washer: 1/2" plate
Finish
- Simpson Strong-Tie gray paint; HHDQ11 — available in stainless steel
Installation
- See General Notes for Holdowns and Tension Ties
- Strong-Drive SDS Heavy-Duty Connector screws install best with a low-speed, high-torque drill equipped with a 3/8" hex-head driver
- No additional washer is required
- HHDQ14 requires a heavy-hex anchor nut (supplied with holdown)
