Simpson Strong-Tie HUC612 Concealed Face Mount Joist Hanger The PA18 purlin anchor is

The PA18 purlin anchor is made of 12 gauge galvanized steel

The PA68Z purlin anchor is made of 12 gauge Z-Max galvanized steel

The Simpson Strong-Tie HUC410 is a 4 x 10 concealed flange hanger made with 14 gauge galvanized steel

These hangers are designed for applications where higher loads are needed

Simpson Strong-Tie HUC612 Concealed Face Mount Joist Hanger The PA18 purlin anchor isThe Simpson Strong Tie HUC612 is a 6 x 12 concealed flange hanger made with 14 gauge galvanized steel. Most models have triangle and round holes. To achieve maximum loads, fill both round and triangle holes with common nails. These heavy duty connectors are designed for schools and other structures requiring additional strength, longevity and safety factors.