Simpson Strong-Tie SDWS22800DB-R50 8" x .220" Structural Wood Screw -Exterior 1 each


Sale price$2.39
In stock


Simpson Strong-Tie SDWS22800DB-R50 8" x .220" Structural Wood Screw -Exterior 1 each

Designed to provide an easy-to-install, high-strength alternative to through-bolting and traditional lag screws. The Strong-Drive SDWS Timber screw 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.

Key Features

  • 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" 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)
  • U.S. Patent 9,523,383

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.

  • Structural wood-to-wood and engineered-wood connections including ledgers
Product Includes
  • Retail and mini-bulk packs include one 6-lobe, T40 driver bit; bulk packs include two driver bits


Coating/Material Double-Barrier Coating
Length (in.) 8
Head Diameter (in.) 0.750
Shank Diameter (in.) 0.220
Drive Type T40 6-Lobe
Head Type Washer Head
Thread Length 2 3/4
Point Type SawTooth™ Point

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