Simpson Strong-Tie HD9B Holdown
The Simpson Strong-Tie HD9B bolted holdown features a unique seat design which greatly minimizes deflection under load. The HDB holdowns are self jigging, ensuring that the code-required minimum of seven bolt diameters from the end of the post is met. They can be installed directly on the sill plate or raised above it and are suitable for back-to-back applications where eccentricity is a concern. HDB’s are designed to provide loads for intermediate-load range shearwalls, braced-wall panels and lateral applications. Fasten with Three 7/8″ machine bolts and a 7/8″ anchor. Made with 10 gauge galvanized steel.