OVERVIEW

Designed to provide an easy-to-install, high-strength alternative to through-bolting and traditional lag screws. The Strong-Drive SDWS Timber Screw (Exterior Grade) is ideal for the contractor and do-it-yourselfer alike. It is code listed under IAPMO UES ER-192 and meets 2015 and 2018 IRC and IBC code requirements for several common wood framing applications.
  • SawTooth point ensures fast starts, reduces installation torque and eliminates the need for predrilling in most applications

  • Bold thread design provides superior holding power

  • Underhead nibs offer greater control when seating the head

  • Large low-profile washer head provides maximum bearing area (0.75-in head dia.)

  • Size identification on all SDWS screw heads

  • 6-lobe T40 drive provides positive engagement that makes the screw easy to drive and improves bit life (replacement driver bit — BIT40T-134-RC)

  • Length: 4-in

  • Double-barrier coating provides corrosion resistance equivalent to hot-dip galvanization, making it suitable for certain exterior and preservative-treated wood applications, as described in the evaluation report

  • Quantity: 50















ng-Drive SDWS
Collection Name
Timber