The Simpson Strong-Drive SDWF Floor-to-Floor Screw Kit (Model SDWF2726-TUW) is engineered to simplify wind-uplift restraint connections while delivering superior long-term structural performance. This 0.270 in. x 26 in. screw is uniquely designed to attach upper and lower walls together from the top, spanning the entire floor system and creating a reliable, easy-to-install connection within the continuous uplift load path of the structure. The included innovative Take-Up Washer (TUW) plays a critical role in long-term performance by compensating for wood shrinkage and settlement when installed between the screw head and the sole plate of the upper floor. Each kit contains 25 complete connection sets along with all required installation hardware, making this a comprehensive, job-site-ready solution for floor-to-floor fastening applications.

Key Features

• Faster Installation: Drive the screw, install the take-up washer, and the plate-to-plate connection is complete - faster than other floor-to-floor connection methods.
• Shrinkage Compensation: The Take-Up Washer (TUW) ensures a tight, secure connection even after initial wood shrinkage and settlement occur over time.
• Interior Installation: Installs entirely from inside the structure, eliminating the need for exterior work on upper stories and enhancing job-site safety.
• Flexible Fastening Schedule: Fastening can be performed before or after exterior sheathing is applied, providing added scheduling flexibility.
• Versatile Single-Length Coverage: One 26 in. screw length accommodates multiple floor depths, reducing the need to stock multiple screw lengths on the job site.
• Variable Thread Design: Engineered thread geometry optimizes pull-through performance and engagement across varying wood conditions.
• Type-17 Point: Self-drilling point for efficient, reliable penetration into wood substrates.
• E-coat Electrocoating: Recommended for dry, low-corrosion environments, providing a durable protective finish.
• Complete Kit: Includes all required installation hardware - screws, take-up washers, connector screws, driver bit, and a screw depth guide.

Specifications

• Model Number (MPN): SDWF2726-TUW
• Shank Diameter: 0.270 in.
• Length: 26 in.
• Head Type: Hex Washer Head
• Head Diameter: 0.730 in.
• Drive Type: 5/16 in. Hex
• Thread Type: Variable Thread Design
• Thread Length: 5 in.
• Point Type: Type-17 Point
• Coating / Finish: E-coat Electrocoating
• Quantity: 25
• Country of Origin: Taiwan

Approved Applications

• Fastening Floor-to-Floor - connecting upper and lower wall plates across a floor system for continuous uplift load path performance

What's Included

This kit includes all required installation hardware:

• (25) Strong-Drive SDWF Floor-to-Floor screws
• (25) TUW take-up washers
• (100) Strong-Drive SD Connector screws (#9)
• (1) 5/16 in. hex driver bit
• (1) Screw depth guide to ensure proper SDWF engagement with TUW