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Description
Professional Fastening Systems
O Clips — Size 3740
37–40mm Two-Ear Hose Clamps
Zinc-plated steel · Crimp-fit permanent seal · Pack of 25
The Size 3740 O Clip is the professional's choice for permanent, tamper-resistant hose retention across the 37–40mm clamping range. Manufactured from zinc-plated steel, each two-ear clamp delivers a uniform radial compression that eliminates hose creep, minimises leak paths, and withstands the vibration and pressure cycles common in pneumatic, automotive, and fluid-transfer environments. Where a screw-band clamp is too bulky or too adjustable, the O clip provides a definitive, low-profile solution — once crimped, it stays.
Technical Specification
| Product Type | O Clip / Two-Ear Clamp |
| Size Reference | 3740 |
| Clamping Range | 37–40mm |
| Material | Steel |
| Finish | Zinc Plated |
| Installation Method | Crimp / Pinch Clamp Tool |
| Pack Quantity | 25 Clips |
| Barcode | AC015016598170921 |
| SKU | air_comp151 |
| Suitable For | Hoses, Tubing & Pipe Connections |
| Corrosion Resistance | Zinc Plated Protective Finish |
| Profile | Low-Profile, Permanent Clamping |
Why Professionals Specify O Clips
Typical Applications
Installation Note
O clips require a side-closing pincer or ear clamp tool for correct installation. Correct tooling ensures the ears are fully closed without distortion, maintaining the integrity of the seal. We stock the compatible Side-Closing Pincer — available separately.
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