Z Fitting For 2-7/16″ Channel Height – Electro-Galvanized are Z Shaped Connectors that join perpendicular channels that are stacked on top of each other. These connectors fit FS-150 Strut Channel Use Like Metal Hardware for your application so the material lasts up to its optimal timeline. Electro-Galvanized Steel should be used in interior applications where conditions are dry, and humidity is low.