Re-engineeered Holdowns

Simpson Strong-Tie’s HDUE replaces its HDU holdown for shearwalls, braced wall panels, and other lateral-force-resisting applications. According to Simpson, angled fastening in the four larger sizes of the holdown engages the screws in tension for higher load capacity, reducing the number of screws required. In addition, the teardrop-shaped holes permit selected fasteners to engage and distribute the load more evenly; a predeflected seat reduces deflection under load; and an overlapping back plate increases steel strength and helps prevent post splitting. strongtie.com