WORM DRIVE HOSE CLAMP A worm drive hose clamp (also known as a worm gear clamp or simply hose clamp) is a device used to attach and seal a hose onto a fitting such as a barb or nipple. It’s named for the worm gear mechanism that allows it to tighten around the hose. 🔧 Key Components: Band: Typically stainless steel, it wraps around the hose. Screw housing: Encases the screw and engages the slots in the band. Worm screw: When turned, it moves the band tighter or looser around the hose