HDQ8/HHDQ Holdowns

The Simpson Strong-Tie HDQ8-SDS3 holdown combines low deflection and high loads with ease of installation. The unique seat design of the HDQ8 greatly minimizes deflection under load. (20) 3" SDS Simpson Strong-Tie® Strong-Drive® screws are included which install easily, reduces fastener slip and provide a greater net section area of the post when compared to bolts. They may be installed either flush or raised off the mudsill without a reduction in load value. Material: 7 Gauge Steel...

Save by Purchasing a Quantity of 10 Boxes (60 Pieces)! The Simpson Strong-Tie HDQ8-SDS3 holdown combines low deflection and high loads with ease of installation. The unique seat design of the HDQ8 greatly minimizes deflection under load. (20) 3" SDS Simpson Strong-Tie® Strong-Drive® screws are included which install easily, reduces fastener slip and provide a greater net section area of the post when compared to bolts. They may be installed either flush or raised off the mudsill...

The Simpson Strong-Tie HDQ11-SDS2.5 holdown combines low deflection and high loads with ease of installation. (24) 2-1/2" SDS Simpson Strong-Tie® Strong-Drive® screws are included which install easily, reduces fastener slip and provide a greater net section area of the post when compared to bolts. They may be installed either flush or raised off the mudsill without a reduction in load value. Material: 7 Gauge Steel Finish: Simpson Gray Paint Anchor Bolt Size: 1" Minimum Post Thickness:...

The Simpson Strong-Tie HDQ14-SDS2.5 holdown combines low deflection and high loads with ease of installation. (30) 2-1/2" SDS Simpson Strong-Tie® Strong-Drive® screws are included which install easily, reduces fastener slip and provide a greater net section area of the post when compared to bolts. They may be installed either flush or raised off the mudsill without a reduction in load value. Material: 7 Gauge Steel Finish: Simpson Gray Paint Anchor Bolt Size: 1" Minimum Post Thickness:...