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

Deck Construction: Ensures strong

The countersunk head allows flush-mount fastening ideal for thresholds

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

25-year removal & replacement

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