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2-Ear Pinch Clamp, Zinc Plated Steel, 0.315 - 0.433 Inch Clamping Range, 0.276 Inch Width

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Description & Features

The Oetiker 2 ear clamp 3/8 is an ideal solution for securing hoses on air, fluid, gas, and steam lines, especially in industrial environments with heavy vibrating equipment. The clamp boasts a zinc plated steel construction, providing robust corrosion resistance.

The one-piece design ensures a tamper-proof, secure seal without harming the hose. With a clamping range of 0.315 to 0.433 inches and a width of 0.276 inches, this clamp offers reliable performance in demanding applications.

Installation is straightforward: first, close one ear completely. Next, close the second ear until the first ear opens slightly, creating a spring-like effect. This method offers enhanced clamping strength and resilience against pressure, vibration, and shrinkage due to temperature fluctuations or aging. If both ears close completely, a smaller clamp size should be selected.

This clamp is particularly suitable for industrial use, ensuring optimal performance and durability in challenging conditions.

MPN: C1ZZ58

Supplier Part Number: 10100011

Specifications

Brand
OETIKER®
Finish
Zinc-Plated
grp Installation
While Both Ears Must be Closed, 2-Ear Clamps are Best Installed when 1-Ear is Closed All the Way First, the Second Ear is Then Closed So That the First Ear Opens Slightly (Gap to be Approximately 1/16 in)
Material
Steel
Nominal Size
3/8 in
Series
101 Series

Product Questions & Answers (3)

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Question by: Bobby B on Apr 10, 2025, 12:47 PM
got a hose that measures right around 3/8, is this clamp gonna fit or am i pushing it?
Answer by: Customer Support on Apr 12, 2025, 8:47 AM
Go by the clamping range, not the “3/8” nickname. This one clamps from 0.315 to 0.433 inch, so it works as long as your hose outside diameter where the clamp sits falls in that window.
Question by: Tammy W on May 28, 2025, 7:10 PM
Will these clamps hold up okay on steam lines, or should I be looking at something else?
Answer by: Customer Support on May 30, 2025, 3:02 PM
These Oetiker 2-ear clamps are indeed suited for steam lines, as well as air, fluid, and gas lines, especially in industrial settings where there's a lot of vibration. The zinc plated steel construction provides good corrosion resistance for those applications.
Question by: Warren B on Jan 22, 2026, 9:55 PM
what's the right way to install one of these 2-ear clamps? i always just squeeze both ears down at the same time but somebody told me that's not how you're supposed to do it
Answer by: Customer Support on Jan 24, 2026, 9:28 PM
Your coworker's right on that one. Close the first ear all the way, then work the second ear down until the first ear opens back up just a little, roughly 1/16 of an inch. That slight gap is what gives the clamp its holding strength. It creates a spring-like tension that helps the clamp resist pressure, vibration, and hose shrinkage over time. If you close both ears completely flat, you've likely got too big a clamp for the job and should move down to the next smaller size.

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