Screw (Worm Gear) clamp Gardena 7191-20

The GARDENA Screw (Worm Gear) clamp 7191-20 is a steel hose clamp designed to secure flexible hoses with a nominal diameter of 2 cm. Constructed from durable steel, it provides a stable, adjustable connection between hoses and fittings for gardening and general home repair tasks. The clamp's worm-gear mechanism allows gradual tightening and a consistent clamping force suitable for repeated use.

Advantages

This screw (worm gear) clamp offers reliable corrosion-resistant steel construction and a compact profile that fits common garden hoses and small plumbing hoses. Its adjustable worm-gear band provides precise clamping tension and maintains a secure fit over time. The simple screw drive enables quick installation and later adjustments without specialized tools.

Suitable for

• Securing garden hoses to connectors and fittings
• Small plumbing repairs and temporary hose joins
• Attaching flexible tubing in greenhouse or irrigation systems
• DIY projects requiring adjustable hose fastening

Key specifications

• Material: steel
• Clamping mechanism: screw (worm gear)
• Suitable hose diameter: approximately 2 cm
• Profile: narrow band for small-diameter hoses
• Adjustability: continuous within the clamp's range

How to use

Slide the clamp over the hose end before attaching the hose to the fitting. Position the clamp so the band sits evenly over the hose and the fitting junction. Turn the screw clockwise with a screwdriver to tighten the band until the hose is held firmly without deforming the hose wall. To loosen or remove, turn the screw counterclockwise. Check the connection after initial use and retighten if necessary to maintain a leak-free joint.

Usage recommendations

For durable connections, avoid overtightening which can damage soft hoses. Use a correctly sized clamp for best performance and inspect periodically in outdoor or wet environments to ensure continued integrity.