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)
Easy-Grip Butterfly Hose Clamp | Tool-Free Stainless Steel Hand-Tighten Hose Clip
RockClamp Butterfly Hose Clamps are designed for applications where frequent installation and removal are required. Featuring an ergonomic plastic handle (key/butterfly), these clamps allow for quick, secure fastening by hand—no screwdrivers or special tools needed. Perfect for garden hoses, household appliances, and light-duty industrial connections.
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.
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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.
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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
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Different colors of the thumb screw hose clamp are available.
Key Features
Tool-Free Operation: The integrated plastic butterfly handle allows for effortless manual tightening and loosening, saving time and labor.
Premium Material Options: Available in W1 (all galvanized steel), W2 (SS3 band & housing, galvanized screw), and W4 for superior corrosion resistance.
Smooth Band Edges: Precision-stamped bands with rounded edges protect your hoses from abrasion and damage during tightening.
Customizable Colors: Ergonomic handles are available in various colors (Blue, Red, Yellow, Green) to match your brand or application coding.
Durable Performance: High torque strength and vibration-resistant design ensure a leak-proof seal even in demanding environments.
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:
Gardening & Irrigation: Quick connection for water hoses and sprinklers.
Household Appliances: Securing drain hoses for washing machines and dishwashers.
Laboratory & Medical: Ideal for temporary tubing setups that require frequent adjustments.
Automotive DIY: Low-pressure vacuum lines and fuel breathers.
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Package: small bag/box + outer carton + pallet
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Why Choose RockClamp?
20+ Years of Expertise: Professional manufacturer specializing in high-performance clamping solutions.
Strict Quality Control: Each batch undergoes rigorous tension and salt spray testing.
Global Shipping: Reliable logistics and fast turnaround times for bulk wholesale orders.
OEM/ODM Support: Custom branding and packaging available upon request.