Simpson Strong-Tie HDB Bolted Holdown, Hot-Dip Galvanized
The HDB is designed to provide loads for intermediate-load-range shearwalls, braced-wall panels and lateral applications in wood construction. This bolted holdown is installed with bolts into studs or columns and offers low-deflection performance for a range of load requirements. The HDB is suitable for back-to-back applications where eccentricity is a concern.
- Installed after the placement of concrete and framing is in place
- Can be installed directly on the sill plate or raised above it
- Self-jigging, ensuring the code-required minimum of seven bolt diameters from the end of the post when installed flush with the sill plate
Specifications (all models)
- Finish: Hot-Dip Galvanized
Available options (see each model for exact values)
- Gauge: 7, 10, 12
- Dimension SB (in.): 2 1/2, 3, 3 1/2
- Dimension W (in.): 2 1/2, 2 7/8
- Dimension CL (in.): 1 1/4, 1 5/16
- Dimension H (in.): 8 5/8, 9 3/8, 12 3/8, 14
- Dimension B (in.): 2 1/4, 2 1/2
- Dimension hb (in.): 4 3/4, 5 1/4, 6 1/8
- Dimension SO (in.): 3/8, 2, 2 3/8
- Thickness (in.): 3/16, 3/8
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Technical documents
Technical documents
Opens the official document from Simpson Strong-Tie, ICC-ES, IAPMO, UL or FM in a new tab. Have the engineer of record confirm the design for your project.
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