Superstrut 6 in. x 6 in. Steel Square Post Base Connector - Strut Fitting - Silver Galvanized ZAP232EG-4 - The Home Depot | Galvanized steel, Galvanized, Fittings
Metal Framing Superstrut A-1200 for Sale in Phoenix, AZ - OfferUp
Thomas & Betts A120020PG Superstrut Metal Channel | Standard Electric Supply Co.