GD-12.7*0.6*30-C304

Stainless steel hose clamp, also called worm gear band is a economical and reusable stainless clips used to attach and fasten a hose onto a fitting to prevent working fluid or air from escaping. Also the worm drive clamp are common used in various industries or personal use where need to secure materials or attach fittings, like transportation, civil engineering, pipings, municipal construction, video surveillance etc.

https://www.jera-fiber.com/stainless-steel-hose-clamp/