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

Kit Contains: 20-HM9

Minimum end and edge distance for concrete screws is 1-1/2″

The Simpson Strong-Tie HU216-2 is a double 2 x 16 hanger made with 14 gauge galvanized steel

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.