Product Description
The Simpson Strong-Drive SDWF Floor-to-Floor Screw Kit (SDWF2716-TUW) is engineered to simplify the wind-uplift restraint connection while delivering superior, long-lasting performance over the life of the structure. Measuring 0.270 in. x 16 in. with a 5/16 in. hex drive, the SDWF's unique design allows it to attach upper and lower walls together from the top, spanning the floor system and creating an easy-to-install connection within the continuous uplift load path of the structure. The innovative Take-Up Washer (TUW) - installed between the screw head and the sole plate of the upper floor - plays a key role in long-term performance by compensating for wood shrinkage and settlement, ensuring the connection remains tight throughout the life of the build. This 25-count kit includes all required installation hardware for a complete, code-ready floor-to-floor connection system.
Key Features
- Fast Installation: Faster to install than other floor-to-floor connection methods - drive the screw, install the take-up washer and the connection is made from plate-to-plate.
- Shrinkage Compensation: Ensures a tight connection even after initial shrinkage and settlement occur.
- Interior Installation: Installs from inside the structure, eliminating exterior work on upper stories and enhancing job safety.
- Flexible Scheduling: Fastening can be done before or after exterior sheathing is applied for added flexibility.
- Versatile Screw Length: One screw length can be used for multiple floor depths (refer to chart to select appropriate screw size), reducing the need for many screw lengths.
- Drive Type: 5/16 in. Hex
- Length: 16 in.
- Coating: E-coat electrocoating is recommended for dry, low-corrosion environments.
- Quantity: 25 screws per kit
- Complete Kit: Includes all required installation hardware - screws, take-up washers, connector screws, driver bit, and screw depth guide.
Specifications
- Model Number: SDWF2716-TUW
- Shank Diameter (in.): 0.270
- Length (in.): 16
- Head Type: Hex Washer Head
- Head Diameter (in.): 0.730
- Drive Type: 5/16 in. Hex
- Thread Type: Variable Thread Design
- Thread Length (in.): 5
- Point Type: Type-17 Point
- Coating / Finish: E-coat Electrocoating
- Quantity: 25
- Country of Origin: Taiwan
Approved Applications
- Fastening Floor-to-Floor
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)
- 5/16 in. hex driver bit (replacement driver bit - BITHEXR516-134)
- Screw depth guide to ensure proper SDWF engagement with TUW
Frequently Asked Questions
- What is included in the SDWF2716-TUW kit?
- This 25-count 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), a 5/16 in. hex driver bit (replacement driver bit - BITHEXR516-134), and a screw depth guide to ensure proper SDWF engagement with the TUW.
- What is the purpose of the Take-Up Washer (TUW) and how is it used?
- The Take-Up Washer (TUW) is installed between the screw head and the sole plate of the upper floor. It provides shrinkage compensation, ensuring the floor-to-floor connection remains tight even after initial wood shrinkage and settlement occur, which plays a key role in the long-term performance of the connection.
- What environment is the E-coat finish on these screws suitable for?
- The E-coat electrocoating finish on the SDWF2716-TUW screws is recommended for dry, low-corrosion environments. It is not intended for high-moisture or highly corrosive conditions.
- Can these screws be installed before exterior sheathing is applied?
- Yes. The SDWF Floor-to-Floor screws install from inside the structure, which eliminates the need for exterior work on upper stories. Fastening can be performed either before or after exterior sheathing is applied, providing added scheduling flexibility during construction.
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