Simpson Strong-Tie MPAI44 45-1/2" Masonry Purlin Anchor for I-Joist - Galvanized Specialty Self-Drilling Screws When the resin encounters water

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

saving time on every project

so the wafer head seats flush and the connection remains tight

This adds versatility to the product

No pre-drilling required in most wood applications

Simpson Strong-Tie MPAI44 45-1/2" Masonry Purlin Anchor for I-Joist - Galvanized Specialty Self-Drilling Screws When the resin encounters waterThe 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