Highcool Silver Hand Tools 8 Inch sku-17294752853 Clamp

The Highcool Silver galvanized steel duct clamp is listed under Hand Tools as Unisex, size 8 Inch - Pack of 5, sku-17294752853 and UPC 617359725517. The title calls it an 8-inch 5Pack. Each clamp fits a round ventilation duct with a 7.87-inch diameter and stands 0.9 inch tall. It has M10 threads for surface mounting and M8 threads for duct fastening.

It attaches to a flat wall or ceiling and is described for HVAC, ventilation, drainage, heating and cooling applications. The listing says the clamps grip ducts without gaskets and reduce system noise and vibration.