Instructions for Worm Gear Hose Clamps

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Things You'll Need

  • Flat-head screwdriver

  • 5/16-inch hex-head nut driver


Worm gear drive clamps come in a wide variety of sizes for various application requirements. As such, the slotted hex-head of the worm gear screw may be a different size.

Worm gear hose clamps are also available with a thumbscrew head for lighter applications that work at lower pressures or that are used for the binding of materials other than hose.


Always make certain that the worm gear clamp selected for use is designed for the particular amount of pressure in the application. Check with the local supplier of worm gear hose clamps for the proper size and type necessary.

A worm gear hose clamp.

Worm gear hose clamps are most frequently used when a clamp is needed to secure a hose while remaining connected to a fitting. Used in automotive, aviation and industrial applications, worm drive clamps are manufactured from zinc-plated steel or various grades of stainless steel. The components that make up the worm drive clamp are a slotted band, a screw housing and the worm gear or helical-threaded screw that meshes with the slots in the band. The do-it yourself enthusiast can install a worm gear hose clamp in five minutes using a flat-head screwdriver and/or a 5/16-inch nut driver.


Step 1

Select the proper size worm gear hose clamp for installation. Match the type and size of the clamp to the diameter of the hose to be secured.

Step 2

Open the worm gear hose clamp by turning the head of the worm gear screw counterclockwise. Use the screwdriver or a 5/16-inch nut driver until the worm gear screw threads are free from the slotted band.

Step 3

Open the band by pulling it outward from the worm gear screw housing to the extent needed to fit around the hose.


Step 4

Place the worm gear hose clamp around the hose to be clamped with the worm gear screw head facing in the direction necessary for access to the head with tools.

Step 5

Insert the band into the worm gear screw housing until it stops and holds it firmly in place.

Step 6

Turn the head of the worm gear screw clockwise to tighten using the screwdriver or the 5/16-inch nut driver. The worm gear screw meshes with the slots in the band to draw it tighter around the hose as the worm gear screw is turned.



Max Stout

Max Stout began writing in 2000 and started focusing primarily on non-fiction articles in 2008. Now retired, Stout writes technical articles with a focus on home improvement and maintenance. Previously, he has worked in the vocational trades such as automotive, home construction, residential plumbing and electric, and industrial wire and cable. Max also earned a degree of biblical metaphysician from Trinity Seminars Ministry Academy.