#9 x 3-1/2" Simpson Strong-Tie T20 DWP Trim Head Wood Screw - 305 Stainless Steel, Pkg. 1,500 Rod Hanger Concrete Screws Double-Barrier Coating – Resists corrosion

Double-Barrier Coating – Resists corrosion in wet

leaving you with a smooth

The PDPAT is a hardened-steel

Its square base provides greater flexibility for various roofing materials and shapes

Designed for use with light to medium-gauge steel

#9 x 3-1/2" Simpson Strong-Tie T20 DWP Trim Head Wood Screw - 305 Stainless Steel, Pkg. 1,500 Rod Hanger Concrete Screws Double-Barrier Coating – Resists corrosionThe Simpson Strong Tie Deck Drive DWP Trim Head Wood SS Screw is built for outdoor projects that demand long lasting performance and a clean finish. Made from 305 stainless steel for reliable corrosion resistance, its the go to fastener for decks, docks, fences, and other exterior wood applications. Engineered for efficiency, this screw features a sharp point and unique box thread design that drive smoothly into wood, engineered lumber, and polymer