U Fitting For 1-5/8″ Side by Side Channel Height – Electro-Galvanized are U-Shaped Connectors that join perpendicular channels that are stacked on top of each other. These connectors are stacked from base plate to base plate on top of 1-5/8″ Channel fits two FS-200 sections of 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.