Simpson Strong-Tie HHUS Extra-Heavy U-Shaped Hanger With Double-Shear Nailing. Designed for applications where higher loads are needed. This heavy-capacity hanger features double-shear nailing that distributes the load through two points on each joist nail for greater strength. This feature allows for fewer nails, faster installation and the use of all common nails for the same connection. 14-Gauge material, galvanized finish, etc.