The QuicKorner from Ward Industries, a brand of Hart & Cooley Inc., connects all TDC or TDF roll-formed duct flanges. It works with both single and double head auto insertion machines, comes stacked in the box for easy loading, and is designed to prevent jamming, said the company. They are available in 16 gauge galvanized steel or aluminum, and feature a 3⁄8-inch bolt hole for securing duct sections at the flange.

The QuicKorner, manufactured to SMACNA standards, is engineered and tested to ensure a secure duct connection.