Band width: 8mm
Band thick: 0.6mm
Screw size: 1/4” (6.3mm)
Material: W1/W2
Free running torque: 6 in-lbs (0.7 Nm)
Suggested installation torque: 18.5 in-lbs (2.1 Nm)
Description:
The butterfly hose clamp is also called as thumb screw hose clamp, is a metal fastening device designed to securely attach hoses to pipes or fittings. Its most distinctive characteristic is an ergonomically shaped handle mechanism—resembling butterfly wings—that allows for quick and effortless tightening and loosening by hand. This user-friendly design makes it especially well-suited for applications where frequent adjustments or rapid disassembly are required, such as in automotive, industrial, and household plumbing contexts.
Core Construction:
- Clamping Band. Crafted from rust-resistant stainless steel or galvanized steel, featuring precision-stamped anti-slip grooves or perforated designs to ensure superior gripping performance.
- Drive Assembly. Incorporates a helical worm gear or linear rack mechanism that converts handle rotation into precise circumferential clamping force control.
- Control Handle. Available in foldable or fixed configurations, constructed with high-performance engineering plastics to deliver effortless operation.
Working Mechanism:
Tightening Process: Clockwise handle rotation - Worm gear actuation - Band groove engagement - Uniform circumferential contraction
Release Process: Counterclockwise handle rotation - Worm gear disengagement - Spring assisted band expansion - Diameter restoration
Thumb screw hose clamp Material:
W2 - Hosing and band stainless steel 201304, screw carbon steel with plastic handle
Different colors of the thumb screw hose clamp are available.
Dimension chart:
| butterfly hose clamp | |||||
| Part No | SAE Size | Dimension | Qty/Ctn | Meast in cm | |
| mm | in inch | ||||
| HAM8W216 | 4 | 6-16 | 0.25"-0.62" | 2000 | 38×27×14 |
| HAM8W220 | 6 | 11-20 | 0.44"- 0.78" | 2000 | 38×27×19 |
| HAM8W223 | 8 | 13-23 | 0.5"- 0.91" | 2000 | 38×27×17 |
| HAM8W227 | 10 | 14-27 | 0.56"- 1.06" | 2000 | 38×27×29 |
| HAM8W232 | 12 | 18-32 | 0.69"- 1.25" | 2000 | 38×27×34 |
Application:
Butterfly hose clamp is widely used in multiple industrial sectors.
Automotive repair: Tool-less securing of radiator/oil hoses in engine bays with one-hand operation
Industrial processes: 30-second hose replacement during quarterly reactor maintenance in chemical plants
Agricultural irrigation: Seasonal drip line assembly with slip-resistant handles for muddy gloves
Package: small bag/box + outer carton + pallet
