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Simpson Strong-Tie Structural Screws

Strong-Drive SDWS Timber screws, SDWH Timber-Hex, SDW EWP-Ply and SDWC truss screws — 0.220" structural wood screws from 3" to 10" that replace lag bolts and through-bolts. Filter by length, diameter and coating.

SIMPSON Strong-Tie Genuine connectors & fasteners · ships same day

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Which finish do I need?
  • ZMAX (G185) – treated lumber, decks, anything outdoors
  • G90 – dry, interior framing
  • Stainless (304/316) – salt water, pools, coastal
  • Black – Outdoor Accents decorative line

Need help choosing?

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  • Ships same day – order by 2:30 PM ET
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