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Marine-ready protection – ASTM A153 hot-dip galvanized finish resists corrosion in coastal and wet environments
Flexible design: #4 Roofjack size fits pipe sizes from 3” - 6-1/4”
Install Hanger Plates: Fasten each plate to the beam and column using included SDS screws
Stainless Steel Protection: Available in Type 316 SS for maximum corrosion resistance near water
0.220" x 5" Strong-Tie SDWS22500DBB Timber Screw - Double Barrier Coating, Black | Qty. 600 EPDM Bonded Washers Marine-ready protection – ASTM A153Simpson Strong Tie SDWS Timber Screws (Exterior Grade) are your go to fasteners when strength and weather resistance matter. Ideal for outdoor framing, landscaping, or heavy duty builds, these structural wood screws help DIYers get pro level results without the need for pre drilling. Coated with a high performance Double Barrier finish, they resist corrosion from rain, moisture, and treated lumber. The large washer head adds serious clamping power,