Simpson Strong-Tie SDWF2720-TUW 20x22 Floor-To-Floor Take Up Screw Kit 25ct

Simpson Strong-Tie SDWF2720-TUW 20" Floor-To-Floor Take Up Screw Kit, 25ct The Simpson Strong-Tie Strong-Drive SDWF structural wood screw is designed to simplify the floor-to-floor, wind-uplift restraint connection while providing superior performance over the life of the structure. The unique design of the SDWF enables it to attach upper and lower walls together from the top, spanning the floor system and providing an easy-to-install connection within the continuous uplift load path of the structure. The innovative TUW take-up washer plays a key role in the long-term performance of the SDWF when installed between the screw and the sole plate of the upper floor. As the structure settles because of shrinkage and construction loading, the threaded portion under the head of the screw ratchets up through the tabs of the TUW, which is fastened with Simpson Strong-Tie Strong-Drive SD screws. The interlock between the tabs of the take-up washer and the threads under the head of the SDWF prevent the screw from sliding back under load, providing a simple yet reliable means of shrinkage compensation up to 3/4" per story. For a Continuous Uplift Load Path, also see SDWC Strong-Drive Structural Wood Screw for Truss and Rafter Connections Features: Faster to install than other methods: just drive the screw and the connection is made Shrinkage compensation ensures a tight connection even after initial shrinkage and settlement occur Fastening can be done before or after exterior sheathing is applied for added flexibility Installs from inside the structure, eliminating exterior work on the upper stories and enhancing job safety The TUW take-up washer installs with (4) #9x2 1/2" Strong-Drive SD structural-connector screws (provided) Material: SDWF carbon steel, TUW 10 gauge Finish: SDWF E-Coat; TUW Galvanized