Simpson Strong Tie Simpson Strong Tie H2.5A 18-Gauge Hurricane Tie Designed to provide a connection between trusses/rafters and the top plate of the wall to resist high-wind/seismic forces Made from 18 gauge steel Install in pairs on either side of the rafter/truss/joist to provide resistance to uplift and lateral forces Galvanized for extra corrosion resistance Install with 8d common nails or #9 by 1-1/2-inch screws