Simpson Strong-Tie HGUS410 Face Mount Beam Hanger The PA18 purlin anchor is

The PA18 purlin anchor is made of 12 gauge galvanized steel

80-SDS1/4×1-1/2 screws and 100-TTN25214H (Titen masonry screws)

Nuts have internal machine threads

The Simpson Strong-Tie HU212-2 is a double 2 x 12 hanger made with 14 gauge galvanized steel

Simpson Strong-Tie HGUS410 Face Mount Beam Hanger The PA18 purlin anchor isHGUSFace mount hanger used for high load applications. All hangers in this series have double shear nailing. This patented innovation distributes the load through two points on each joist nail for greater strength. It also allows the use of fewer nails, faster installation, and the use of common nails for all connections.