Simpson Strong-Tie HDU2-SDS2.5 Holdowns are pre-deflected during the manufacturing process, virtually eliminating deflection under load due to material stretch. They come with (6) 2-1/2" Simpson Strong-Tie® Strong-Drive® SDS screws which install easily and provide reduced fastener slip. Using SDS screws results in a greater net section, when compared to bolts, as no material is removed.

• Pre-deflected body virtually eliminates deflection due to material stretch.
• Uses (6) 1/4" x 2-1/2" SDS screws which install easily, reduces fastener slip, and provides a greater net section area of the post compared to bolts.
• SDS screws are supplied with the holdowns to ensure proper fasteners are used.
• No stud bolts to countersink at openings.
• Anchor Bolt Diameter: 5/8"