Simpson Strong-Tie Heavy Duty Joist Hanger Concealed Reverse Flange Z-Max - Z Hanger Bracket

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. Do not bend or remove tabs. Most models have triangle and round holes. To achieve maximum loads, fill both round and triangle holes with common nails.