Simpson HCJTZ Concealed Joist Tie with Pins - ZMAXThe Simpson HCJTZ Concealed Joist Tie is a concealed connector. It can be installed three ways: with no routing of header post or beam, a routed header post or a routed beam. It is part of a concealed connector system that includes the CPTZ and CBTZ. The HCJTZ is a heavy concealed beam tie to be used with large glulam beams resisting heavy loads. The HCJTZ features a unique shape that allows installers to insert the connector into the end of the beam