A thumb screw instead of a slotted screw allows you to install these clamps without any tools.

Unlike vibration-resistant pinch clamps, these have a torque rating for extra holding power in high-vibration applications. They are also known as high-torque clamps.

Clamps come packed in a box with individual compartments for each clamp size. To make sure they won’t cut into hose and tube, they have a smooth band with rolled edges.

Create 2" diameter and larger smooth-band worm-drive clamps.

Don't worry about your hose and tube expanding and contracting when temperatures fluctuate—these clamps have a Bellville spring that automatically increases and decreases the clamp's diameter.