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Feature

High quality, made of stainless steel, they adjust properly and stay securely fastened, seem durable enough.
A must for inline duct work, it creates a tight seal and holds up very well. These are good duct clamps that work with a flat screwdriver.
These worm clamps worked fine with no hassle. The construction appears to be solid. These are hose/duct clamps and are strong enough for your personal use - connecting some flexible HVAC ducts to a connector.
There are heavy duty zip-ties out there for cheaper, but you will feel more comfortable with a perfectly round, tight-fitting worm gear type clamp you can tighten with a hand tool.
Uses: used in the column, poles, cylindrical object objects stuck fasteners, widely used security hoop fixed waterproof case, such as stents

Description

Dimensions: Diameter 100mm (4 inch)
Material: Stainless steel
Hoop diameter: 20 ~ 100mm (scalable)
Hoop width: 12mm
Uses: used in the column, poles, cylindrical object objects stuck fasteners, widely used security hoop fixed waterproof case, such as stents
Packaging: The tightening ring * 2 (surveillance camera bracket generally need to use two)
Flex Duct Clamps are a heavy-duty clamp that uses a worm-drive style to obtain a secure fit that is easy-to-adjust. Perfect for attaching flex ducting to fans, reflectors and other equipment.