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Simpson Strong Tie

Simpson Strong-Tie Strong-Drive SDWS Series SDWS221000DBRC12 Screw, 10 in L, Washer Head, 6-Lobe Drive, Saw Tooth Point

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 DIYer alike. It is code listed under IAPMO UES ER-192 and meets 2012 and 2015 IRC and IBC code requirements for several common wood framing and engineered-wood applications.

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