Simpson Strong-Tie Strong-Drive SDWS SDWS22400DBMB Timber Screw, 4 in L, Serrated Thread, Washer Head, 6-Lobe Drive

Product Overview

• The Strong-Drive® SDWS timber screw is designed to provide an easy to install, high-strength alternative to through-bolting and traditional lag screws. This screw is ideal for the contractor and do-it-yourselfer alike. It is code listed in IAPMO UES ER-192 and meets 2018 and 2021 IRC® and IBC® code requirements for most common wood framing applications.
• bullet: SawTooth® point ensures fast starts, reduces installation torque and eliminates the need for pre-drilling in most applications
• bullet: SawTooth® point ensures fast starts, reduces installation torque and eliminates the need for pre-drilling in most applications
• bullet: Bold thread design provides excellent holding power
• bullet: Under-head nibs offer greater control when seating the head