Simpson Strong-Tie PAI18 Purlin Anchor for I-Joist, 12 Gauge - G90 Galvanized Concrete Repair & Crack Injection these self-drilling screws eliminate the

these self-drilling screws eliminate the need for predrilling

and general steel construction applications

The large washer-style head delivers serious clamping force for long-lasting joints you can trust

Avoid overtightening to preserve the coating and prevent stripping

Simpson Strong-Tie PAI18 Purlin Anchor for I-Joist, 12 Gauge - G90 Galvanized Concrete Repair & Crack Injection these self-drilling screws eliminate theThe Simpson Strong Tie PAI Purlin Anchor is engineered specifically for securing I joists to concrete or masonry walls, providing a code approved wood to concrete and wood to masonry connection. Designed to support a continuous load path, the PAI helps transfer uplift and lateral forces from roof or floor framing directly into the foundation. Unlike standard purlin anchors, the PAI is tailored for I joist construction, accommodating the unique flange