Simpson Strong-Tie HDUE Holdown

Simpson Strong-Tie's patent-pending HDUE holdown is a game-changer in several ways.

Simpson Strong-Tie’s patent-pending HDUE holdown is engineered for higher capacity to meet the demands of today’s residential structures in securing shearwalls, braced wall panels and other lateral-force-resisting applications in wood construction. The four largest sizes combine angled and perpendicular fastening, engaging the screws in both tension and shear, while allowing for higher load capacity and reduced number of screws. In addition, the teardrop-shaped holes permit selected fasteners to engage and distribute the load more evenly, and optimized screw patterns reduce splitting at the end of the post and maximize individual fastener capacity.

The HDUE features a predeflected (rounded) seat, which reduces deflection under load. An overlapping back plate to increase steel increases steel strength and helps prevent post splitting. In addition, for the higher capacity holdowns, the back plate design is shifted where the angled screws are installed, preventing mis-installation and ensuring a precise connection.