Simpson Strong-Tie PA23HDG Purlin Anchor and Strap-Tie Holdown - Hot Dip Galvanized Underlayment & Subfloor Screws The screw’s patented tip drives

The screw’s patented tip drives fast and clean into wood with no pre-drilling

Rim joist models are designed to fit up to a 17" clear span without any loss of strap nailing while still providing all the benefits of the STHD model

they’re built to keep your project running efficiently from start to finish

Stainless Steel Construction: Provides maximum resistance to corrosion

making them a reliable choice for long-term deck performance

Simpson Strong-Tie PA23HDG Purlin Anchor and Strap-Tie Holdown - Hot Dip Galvanized Underlayment & Subfloor Screws The screw’s patented tip drivesThe Simpson Strong Tie PA23HDG Purlin Anchor and Strap Tie Holdown is a heavy duty anchoring solution designed to connect roof purlins to concrete walls or secure wall studs to concrete or masonry foundations. Engineered to provide a reliable wood to concrete or wood to masonry connection, this anchor helps create a continuous load path for transferring uplift and lateral forces into the foundation. Manufactured with a hot dip galvanized finish, the