Founded in 1969, Sheet Metal Connectors, Inc. is a fabricator of standard and custom commercial and industrial sheet metal pr ... oducts. A yellow label union shop. Sheet Metal Connectors, Inc. can supply all of your needs for the HVAC industry, including but not limited to Ductwork, Spiral Pipe, Fittings, Custom Welding, Dieform Elbows, Slips and Drives, Oval Pipe etc. Sheet Metal Connectors, Inc. is located in Minneapolis, MN where it started as a regional supplier to local contractors. Sheet Metal Connectors, Inc also has a facility in Rockford, IL which opened early 2003. Due to our emphasis on Competitive Pricing, Quality Workmanship and Customer Service, Sheet Metal Connectors, Inc. now services contractors and distributors all over North America. read more