Simpson Strong Tie HU26 14-Gauge 2-Inch by 6-Inch Face Mount Joist Hanger 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. 14-gauge galvanized steel "U" design allows for flexibility of placement on the header Joist size: 2x6 Made from 14 gauge steel Galvanized for extra corrosion resistance Install with 16d common nails in the header and 10dx1-1/2 in. nails in the joist