• 2-Ear Zinc Plated Clamps
The Oetiker® 2-Ear Clamp provides increased clamping range over the 1-Ear Clamp. The closed "ear" geometry provides an inherent retained load and a spring action in the clamp, permitting expansion and contraction during thermo-cycling or vibrating conditions. This is a robust, durable one-piece design that offers a positive, tamper resistant seal. Smooth edges prevent damage to hoses and the one-piece design offers quick and easy installation. Parts listed on this page are Electro-Zinc plated Carbon Steel only.
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Item #

Item Name

Band Width (Decimal)

Maximum Clamp Size

Minimum Clamp Size

N/A 4.10 Millimeter (mm) Maximum Size 2-Ear Zinc Plated Clamp N/A 0.138 in3.50 mm N/A 0.161 in4.10 mm N/A 0.122 in3.10 mm
N/A 4.50 Millimeter (mm) Maximum Size 2-Ear Zinc Plated Clamp N/A 0.138 in3.50 mm N/A 0.177 in4.50 mm N/A 0.138 in3.50 mm
N/A 5.00 Millimeter (mm) Maximum Size 2-Ear Zinc Plated Clamp N/A 0.197 in5.00 mm N/A 0.197 in5.00 mm N/A 0.118 in3.00 mm
N/A 7.00 Millimeter (mm) Maximum Size 2-Ear Zinc Plated Clamp N/A 0.236 in6.00 mm N/A 0.276 in7.00 mm N/A 0.197 in5.00 mm
N/A 9.00 Millimeter (mm) Maximum Size 2-Ear Zinc Plated Clamp N/A 0.276 in7.00 mm N/A 0.354 in9.00 mm N/A 0.276 in7.00 mm
N/A 11.00 Millimeter (mm) Maximum Size 2-Ear Zinc Plated Clamp N/A 0.276 in7.00 mm N/A 0.433 in11.00 mm N/A 0.315 in8 mm
N/A 13.00 Millimeter (mm) Maximum Size 2-Ear Zinc Plated Clamp N/A 0.276 in7.00 mm N/A 0.512 in13.00 mm N/A 0.433 in11.00 mm
N/A 15.00 Millimeter (mm) Maximum Size 2-Ear Zinc Plated Clamp N/A 0.295 in7.50 mm N/A 0.591 in15.00 mm N/A 0.512 in13.00 mm
N/A 17.00 Millimeter (mm) Maximum Size 2-Ear Zinc Plated Clamp N/A 0.315 in8.00 mm N/A 0.669 in17.00 mm N/A 0.591 in15.00 mm
N/A 18.00 Millimeter (mm) Maximum Size 2-Ear Zinc Plated Clamp N/A 0.315 in8.00 mm N/A 0.709 in18.00 mm N/A 0.591 in15.00 mm
N/A 20.00 Millimeter (mm) Maximum Size 2-Ear Zinc Plated Clamp N/A 0.335 in8.50 mm N/A 0.787 in20 mm N/A 0.669 in17.00 mm
N/A 22.00 Millimeter (mm) Maximum Size 2-Ear Zinc Plated Clamp N/A 0.354 in9.00 mm N/A 0.866 in22 mm N/A 0.709 in18.00 mm
N/A 23.00 Millimeter (mm) Maximum Size 2-Ear Zinc Plated Clamp N/A 0.354 in9.00 mm N/A 0.906 in23.00 mm N/A 0.787 in20 mm
N/A 25.00 Millimeter (mm) Maximum Size 2-Ear Zinc Plated Clamp N/A 0.394 in10.00 mm N/A 0.984 in25 mm N/A 0.866 in22.00 mm
N/A 27.00 Millimeter (mm) Maximum Size 2-Ear Zinc Plated Clamp N/A 0.394 in10.00 mm N/A 1.063 in27 mm N/A 0.906 in23 mm
N/A 28.00 Millimeter (mm) Maximum Size 2-Ear Zinc Plated Clamp N/A 0.394 in10.00 mm N/A 1.102 in28.00 mm N/A 0.984 in25 mm
N/A 31.00 Millimeter (mm) Maximum Size 2-Ear Zinc Plated Clamp N/A 0.394 in10.00 mm N/A 1.220 in31.00 mm N/A 1.063 in27.00 mm
N/A 34.00 Millimeter (mm) Maximum Size 2-Ear Zinc Plated Clamp N/A 0.394 in10.00 mm N/A 1.339 in34.00 mm N/A 1.220 in31.00 mm
N/A 37.00 Millimeter (mm) Maximum Size 2-Ear Zinc Plated Clamp N/A 0.394 in10.00 mm N/A 1.457 in37.00 mm N/A 1.339 in34.00 mm
N/A 40.00 Millimeter (mm) Maximum Size 2-Ear Zinc Plated Clamp N/A 0.394 in10.00 mm N/A 1.575 in40 mm N/A 1.457 in37.00 mm
N/A 43.00 Millimeter (mm) Maximum Size 2-Ear Zinc Plated Clamp N/A 0.394 in10.00 mm N/A 1.693 in43.00 mm N/A 1.575 in40 mm
N/A 46.00 Millimeter (mm) Maximum Size 2-Ear Zinc Plated Clamp N/A 0.394 in10.00 mm N/A 1.811 in46.00 mm N/A 1.693 in43.00 mm
N/A 30.50 Millimeter (mm) Maximum Size 2-Ear Zinc Plated Clamp N/A 0.118 in3.00 mm N/A 1.201 in30.50 mm N/A
N/A 131.50 Millimeter (mm) Maximum Size 2-Ear Zinc Plated Clamp N/A 0.118 in3.00 mm N/A 5.177 in131.50 mm N/A
N/A 19.00 Millimeter (mm) Maximum Size 2-Ear Zinc Plated Clamp N/A N/A 0.748 in19.00 mm N/A 0.629 in16 mm
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