Lambro 6 In. Worm Gear Clamp for Duct Fittings

The Lambro 6 inch galvanized steel worm gear clamp is ideal for attaching semi-rigid and rigid ducts to vents, exhaust outlets, connectors, elbows and other various connections. These clamps easily adjust using a hex or flat head screwdriver to secure the connection point. It is recommended to use a manual screwdriver to avoid over tightening and stripping the screw.