DIN 3017 German Type Worm Drive Hose Clamp consist of a band, often galvanized or stainless steel, into which a screw thread
pattern has been cut or pressed.One end of the band contains a captive screw. The clamp is put around the hose or tube to be
connected, with the loose end being fed into a narrow space between the band and the captive screw. When the screw is turned, it
acts as a worm drive pulling the threads of the band, causing the band to tighten around the hose (or when screwed the opposite
direction, to loosen). Screw clamps are normally used for hoses 1/2 inch diameter and up, with other clamps used for smaller
hoses.
pattern has been cut or pressed.One end of the band contains a captive screw. The clamp is put around the hose or tube to be
connected, with the loose end being fed into a narrow space between the band and the captive screw. When the screw is turned, it
acts as a worm drive pulling the threads of the band, causing the band to tighten around the hose (or when screwed the opposite
direction, to loosen). Screw clamps are normally used for hoses 1/2 inch diameter and up, with other clamps used for smaller
hoses.