Simpson Strong-Tie MPAI44 45-1/2" Masonry Purlin Anchor for I-Joist - Galvanized Specialty Self-Drilling Screws so the wafer head seats

so the wafer head seats flush and the connection remains tight

When the resin encounters water as it is injected into the crack

The Simpson Strong-Tie F07T300TDC Self-Drilling Siding Screw is designed to deliver strength

The countersunk head allows flush-mount fastening ideal for thresholds

Deck Construction: Ensures strong

Simpson Strong-Tie MPAI44 45-1/2" Masonry Purlin Anchor for I-Joist - Galvanized Specialty Self-Drilling Screws so the wafer head seatsThe Simpson Strong Tie MPAI Masonry Purlin Anchor is engineered to provide a secure, code approved wood to concrete and wood to masonry connection for open web truss and I joist applications. Specifically designed for open web truss joint connections to concrete or masonry walls, the MPAI creates a reliable load path that transfers uplift and lateral forces from roof framing into the supporting structure. Built to accommodate the geometry of open web