Worm drive hose clamp A worm drive hose clamp (also called a worm gear clamp) is a type of adjustable fastening device commonly used to secure hoses over fittings such as barbs or nipples. It's especially common in plumbing, automotive, and industrial applications. Key Components: Band: A flexible, usually stainless steel strip with a series of slots cut into it. Screw/Worm Gear: A captive screw that engages with the slots on the band. Housing: The part that holds the screw and allows it to rotate. How It Works: When the screw is turned (typically with a flathead screwdriver or a socket wrench), the threads engage with the slots in the band. As the screw tightens, the band tightens around the hose, clamping it securely in place. Common Uses: Securing radiator hoses in cars Attaching ducting in HVAC systems Plumbing systems Marine applications