Z Fitting For 1-5/8″ Channel Height – 316 Stainless Steel are Z Shaped Connectors that join perpendicular channels that are stacked on top of each other. These connectors fit FS-200 Strut Channel Use Like Metal Hardware for your application so the material lasts up to its optimal timeline. 316 Stainless Steel provides superior corrosion resistance and is rated for harsh exterior conditions.