Types of Hose Clamps Explained — A Complete Australian Guide

Last updated: May 2026

Hose clamps are mechanical fasteners used to attach and seal a hose onto a fitting. There are nine main types, each suited to different pressure ranges, temperature conditions, and installation methods. Choosing the wrong type can result in hose slippage, leaks, or clamp failure — choosing the right one takes about 30 seconds once you know the differences.

1. Worm Drive Hose Clamps

The most common hose clamp type in Australia. A slotted stainless steel band is tightened by turning a worm gear screw with a screwdriver or nut driver. Fully adjustable across a wide diameter range.

Best for: Automotive cooling and heater hoses, plumbing, irrigation, general workshop use
Available grades: W1, W2, W3, W4
Pros: Adjustable, reusable, widely available, suits most applications
Cons: Can loosen slightly under thermal cycling; not ideal for very high-pressure applications

Also known as: Jubilee clips, screw clamps, band clamps

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2. T-Bolt Clamps

T-bolt clamps use a heavy-duty bolt and nut to apply high clamping force around a rigid band. They are tightened with a spanner, fully adjustable, and reusable — the go-to choice for turbo hose connections, intercooler piping, heavy vehicle cooling systems and performance exhaust work where significant clamping torque is needed.

The bolt design distributes clamping force more evenly around the hose than a worm drive screw, which is why they are preferred on silicone and moulded rubber hoses that can deform under point pressure.

Best for: Turbocharged engines, intercooler piping, high-performance automotive, heavy vehicle cooling systems
Available grades: W2, W3, W4
Pros: High clamping force, even pressure distribution, fully adjustable, reusable, spanner-tightened
Cons: More expensive than standard worm drive clamps; requires spanner access

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3. Constant Tension Clamps (Constant Torque)

Constant tension clamps use an integrated spring mechanism — typically a Belleville spring washer or coiled spring — to apply continuous, self-adjusting clamping pressure. As the hose expands and contracts with temperature changes, the spring compensates automatically, maintaining a consistent seal without re-torquing.

They are not manually adjustable in the way a worm drive or T-bolt clamp is — the spring determines the clamping force. The advantage is that a connection sealed with a constant tension clamp stays sealed through repeated heat cycles that would gradually loosen a standard clamp.

Best for: Marine exhaust hose connections, turbocharged engine hoses, any application with significant thermal cycling
Available grades: W2, W3, W4
Pros: Maintains seal through temperature extremes automatically; no re-torquing required; suitable for silicone hoses
Cons: Not manually adjustable; more expensive than standard worm drive clamps

Also known as: Constant torque clamps, spring-loaded hose clamps

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4. Marine Hose Clamps

Marine hose clamps are all-stainless hose clamps built to withstand continuous exposure to salt water, bilge environments and marine fuel. In marine applications, using a clamp with any zinc or mild steel components — including just the screw or housing — will result in galvanic corrosion within months. A marine clamp must be all-stainless throughout: band, screw, housing and liner.

Beyond grade, some marine clamps use a smooth solid band rather than a perforated band. Perforated bands can cut into softer hose materials over time, particularly on fuel and bilge hose — a smooth liner band protects the hose while maintaining a proper seal.

Best for: Marine exhaust hose, bilge pump hose, seawater cooling circuits, diesel fuel lines on boats, black and grey water connections
Available grades: W3 (430SS, freshwater and mild marine), W4 (304SS, most marine use), W5 (316SS, offshore and saltwater immersion)
Pros: Corrosion-proof in marine environments; solid band options protect hose material; no galvanic interaction
Cons: More expensive than standard worm drive clamps; grade must match the severity of the environment

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5. Ear Clamps (Single and Double Ear)

Ear clamps have one or two raised “ears” that are permanently crimped using a special swaging tool. Once fitted, they cannot be removed without cutting — making them a factory-fit standard rather than a serviceable aftermarket option.

Best for: OEM automotive fuel lines, coolant circuits, heater hose connections, hydraulic fittings
Available grades: Stainless steel or zinc-plated mild steel
Pros: Low-profile, consistent clamping force, tamper-evident
Cons: Single-use only; requires ear clamp tool to install

Premium precision ear clamps are manufactured to tighter tolerances than standard variants and used in OEM automotive and medical applications where consistent clamping force is critical.

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6. Band Clamps (Clamp Making Kit / Endless Clamps)

Band clamps use a continuous strip of stainless steel banding combined with a worm drive housing, allowing you to cut the band to any length and create a custom-diameter clamp on site. Ideal when standard clamp sizes don’t fit.

Best for: Large-diameter hoses, custom fabrication, non-standard fittings, industrial pipework
Available grades: W2 (semi-stainless), W4 (all-stainless)
Pros: Any diameter possible; one kit replaces dozens of fixed-size clamps
Cons: Requires tin snips to cut; slightly more setup time than a standard clamp

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7. Spring Clips (Pinch Clamps)

Spring clips are stamped from spring steel and hold their shape under tension without any tightening mechanism. They are squeezed open with pliers, slid over the hose, and released to clamp. Almost exclusively used in factory-fitted automotive applications.

Best for: Factory coolant and heater hose connections in passenger vehicles; low-pressure fluid lines
Available grades: Spring steel (zinc-plated or stainless)
Pros: Fast installation in production environments; self-tensioning
Cons: Difficult to reuse; can be hard to access in tight engine bays; not adjustable

8. Herbie Clips (Plastic Hose Clamps)

Herbie clips are lightweight, corrosion-proof clamps moulded from nylon or composite polymer. Named for their distinctive ribbed appearance, they are designed for low-pressure applications where metal clamps would be overkill or where corrosion is a concern.

Best for: Automotive heating and cooling (low-pressure circuits), domestic appliances, caravan plumbing, garden irrigation, marine freshwater systems
Pressure rating: Generally 5 psi or less
Pros: Lightweight, corrosion-proof, no tools required for some sizes
Cons: Not suitable for high-pressure or high-temperature use; limited clamping torque

Also known as: Nylon hose clamps, plastic hose clamps

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9. V-Band Clamps

V-band clamps (also called Marman clamps) use a V-shaped channel to join two flanged pipes or hose ends with a single bolt. Common in exhaust systems, turbocharger connections and high-performance applications where quick-release access is needed.

Best for: Turbo inlets and outlets, performance exhaust systems, intercooler piping, industrial ducting
Pros: Even clamping force around the full circumference; easier to disconnect than bolted flanges
Cons: Requires matching flanged fittings; more expensive than standard clamps

Quick Reference — Types of Hose Clamps

Type	Adjustable	Reusable	Best Application	Pressure
Worm Drive	✅ Yes	✅ Yes	General purpose, automotive, plumbing	Medium
T-Bolt Clamp	✅ Yes	✅ Yes	Turbo, intercooler, heavy vehicle	High
Constant Tension	❌ Auto-adjusts	✅ Yes	Thermal cycling, turbo hoses, marine exhaust	High
Marine Clamp	✅ Yes	✅ Yes	Saltwater, bilge, marine fuel and exhaust hose	Medium–High
Ear Clamp / Crimp	❌ No	❌ No	OEM fuel and coolant lines	Medium
Band Clamp	✅ Yes	✅ Yes	Custom diameter, large bore	Medium
Spring Clip	❌ No	⚠️ Limited	Factory automotive, low-pressure	Low–Medium
Herbie Clip	⚠️ Limited	✅ Yes	Low-pressure, corrosion-free environments	Low
V-Band	✅ Yes	✅ Yes	Exhaust, turbo, quick-release flanges	High

Not Sure Which Clamp You Need?

Call our team on 1300 027 886 or email sales@uniclamp.com.au — we'll help you pick the right type and grade for your application.

Browse the full range: All Hose Clamps