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2-Ear Pinch Clamp, Zinc Plated Steel, 0.669 - 0.787 Inch Clamping Range, 0.335 Inch Width

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Description & Features

Designed for industrial applications, the Oetiker 2-ear clamp made of zinc plated steel offers a dependable clamping range from 0.669 to 0.787 inches. This clamp is highly effective in securing air, fluid, gas, and steam lines, making it particularly suited for heavy vibrating equipment.

The 0.335-inch width ensures a snug fit, while the one-piece design provides a tamper-proof seal without compromising the hose. Its efficient installation process involves closing one ear fully before closing the second ear, which opens the first ear slightly to create a spring-like action that withstands pressure, vibration, and hose shrinkage.

The nominal size of 0.75 inches offers versatility across various industrial uses, ensuring a resilient and durable clamping solution. Proper installation techniques are crucial for optimal performance, as selecting the correct size prevents over-clamping issues.

MPN: C1ZZ54

Supplier Part Number: 10100027

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
3/4 in
Series
101 Series

Product Questions & Answers (3)

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Question by: Dwayne H on Dec 14, 2025, 8:37 PM
these go on 3/4 inch hose lines, right? trying to figure out if the nominal size matches up to what i got in the shop
Answer by: Customer Support on Dec 16, 2025, 6:36 AM
Nominal size on this clamp is 0.75 inches, and the actual clamping range runs from 0.669 to 0.787 inches. So as long as your hose outside diameter falls somewhere in that window once it's seated on the fitting, you're in good shape. If you're right at the edge of that range, size down rather than up. Oetiker's own installation guidance says if both ears close all the way flat, the clamp is probably too big and you should move to the next smaller size.
Question by: Cody B on Oct 9, 2025, 8:38 PM
got a hose that measures right around 3/4 inch, is this clamp gonna fit or am i flirting with the wrong size
Answer by: Customer Support on Oct 11, 2025, 7:18 AM
Go by the clamping range, not just the nominal size. This one clamps from 0.669 to 0.787 inch, with a nominal size of 0.75 inch, so it’s meant to land right in that neighborhood as long as your hose and fitting OD fall inside that range.
Question by: Ross C on Aug 30, 2025, 7:14 AM
What size range of hose will this clamp work with?
Answer by: Customer Support on Aug 31, 2025, 4:13 PM
These clamps are designed to fit hoses with an outer diameter between 0.669 and 0.787 inches.

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