HDU holdowns are pre-deflected during the manufacturing process, virtually eliminating deflection under load due to material stretch. They use Simpson Strong-Tie® Strong-Drive® SDS Heavy-Duty Connector screws which install easily, reduce fastener slip and provide a greater net section when compared to bolts.
Light Duty Drill
Nut Driver
1/4" x 2 1/2" Strong-Drive® SDS HEAVY-DUTY CONNECTOR Screw (Included)
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