Hose clamp with worm drive Norma 100–120 mm (model 73576)

Norma hose clamp with worm drive, model 73576, is designed for securing hoses and pipes with a clamping range of 100–120 mm. The clamp features a slotted stainless-steel band and a screw-driven worm gear that enables precise adjustment and consistent radial pressure on rubber and plastic hoses. Intended for automotive, plumbing and light industrial use, this clamp provides a mechanical fastening solution for repair, maintenance and assembly tasks that require a reliable seal and vibration-resistant connection.

Advantages

The worm-drive mechanism allows incremental tightening for an even, repeatable seal while the slotted band ensures firm grip without damaging hose material when used within the specified range. Constructed from corrosion-resistant materials, the clamp withstands typical environmental exposure and provides long service life under normal operating conditions. Its simple screw adjustment enables quick installation and removal with common hand tools.

Suitable for

• Securing rubber or plastic coolant, air or fuel hoses in automotive maintenance
• Fixing flexible pipes and conduits in plumbing and HVAC applications
• Light industrial and workshop hose connections in assembly and repair tasks

Key specifications

• Clamping range: 100–120 mm
• Drive type: worm gear (screw adjustment)
• Band style: slotted band for engagement with worm
• Material: corrosion-resistant metal construction suitable for external use
• Adjustment method: manual with screwdriver or socket tool

How to use

Position the clamp over the hose end so that the band sits evenly around the circumference and the screw drive is accessible. Tighten the screw gradually while ensuring the hose remains seated on the fitting; stop tightening once a secure, leak-free connection is achieved, taking care not to over-compress softer hose materials. For removal, loosen the screw until the band can be slipped off the hose. Use appropriate hand tools and avoid excessive torque.

Usage recommendations

Use the clamp only within its specified clamping range of 100–120 mm and select the correct band width for the hose size and pressure conditions. Inspect connections periodically for corrosion, wear or loosening, especially in high-vibration or high-temperature environments, and replace clamps that show deformation or loss of holding force.