• 1-Ear Carbon Steel Clamps with Mechanical Interlock
These Oetiker® 1-Ear Clamps have a Mechanical Interlock which, in many applications, is superior to any other joint. Spot-welding techniques are not used and therefore the possibility of failure due to corrosion at the spot weld is eliminated. All 1-EAR CLAMPS feature the ear with the "dimple", the simple design difference that not only adds increased strength to the grip of the clamp, but also creates a spring-like action allowing the clamp to "breathe" without loosening. 1-Ear Clamps are used in places where clamping a second ear is impractical, or where a quick, repeatable and compact assembly is important in conjunction with a small clamping range. The version featured on this page has an anti-corrosive electro-zinc coating.
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Item #

Item Name

Band Width (Decimal)

Maximum Clamp Size

Minimum Clamp Size

N/A 10.10 Millimeter (mm) Maximum Size 1-Ear Carbon Steel Clamp with Mechanical Interlock N/A 0.276 in7.00 mm N/A 0.398 in10.10 mm N/A 8.30 mm0.327 in
N/A 10.50 Millimeter (mm) Maximum Size 1-Ear Carbon Steel Clamp with Mechanical Interlock N/A 0.276 in7.00 mm N/A 0.413 in10.50 mm N/A 8.90 mm0.350 in
N/A 11.30 Millimeter (mm) Maximum Size 1-Ear Carbon Steel Clamp with Mechanical Interlock N/A 0.276 in7.00 mm N/A 0.445 in11.30 mm N/A 9.70 mm0.382 in
N/A 12.30 Millimeter (mm) Maximum Size 1-Ear Carbon Steel Clamp with Mechanical Interlock N/A 0.276 in7.00 mm N/A 0.484 in12.30 mm N/A 10.40 mm0.409 in
N/A 13.30 Millimeter (mm) Maximum Size 1-Ear Carbon Steel Clamp with Mechanical Interlock N/A 0.276 in7.00 mm N/A 0.524 in13.30 mm N/A 11.40 mm0.449 in
N/A 14.00 Millimeter (mm) Maximum Size 1-Ear Carbon Steel Clamp with Mechanical Interlock N/A 0.276 in7.00 mm N/A 0.551 in14.00 mm N/A 11.90 mm0.469 in
N/A 14.50 Millimeter (mm) Maximum Size 1-Ear Carbon Steel Clamp with Mechanical Interlock N/A 0.276 in7.00 mm N/A 0.571 in14.50 mm N/A 12.60 mm0.496 in
N/A 15.20 Millimeter (mm) Maximum Size 1-Ear Carbon Steel Clamp with Mechanical Interlock N/A 0.276 in7.00 mm N/A 0.598 in15.20 mm N/A 12.60 mm0.496 in
N/A 15.70 Millimeter (mm) Maximum Size 1-Ear Carbon Steel Clamp with Mechanical Interlock N/A 0.276 in7.00 mm N/A 0.618 in15.70 mm N/A 13.80 mm0.543 in
N/A 16.50 Millimeter (mm) Maximum Size 1-Ear Carbon Steel Clamp with Mechanical Interlock N/A 0.276 in7.00 mm N/A 0.650 in16.50 mm N/A 13.90 mm0.547 in
N/A 17.00 Millimeter (mm) Maximum Size 1-Ear Carbon Steel Clamp with Mechanical Interlock N/A 0.276 in7.00 mm N/A 0.669 in17.00 mm N/A 15.10 mm0.594 in
N/A 18.50 Millimeter (mm) Maximum Size 1-Ear Carbon Steel Clamp with Mechanical Interlock N/A 0.276 in7.00 mm N/A 0.728 in18.50 mm N/A 15.70 mm0.618 in
N/A 19.80 Millimeter (mm) Maximum Size 1-Ear Carbon Steel Clamp with Mechanical Interlock N/A 0.276 in7.00 mm N/A 0.780 in19.80 mm N/A 17.00 mm0.669 in
N/A 21.00 Millimeter (mm) Maximum Size 1-Ear Carbon Steel Clamp with Mechanical Interlock N/A 0.276 in7.00 mm N/A 0.827 in21.00 mm N/A 18.20 mm0.717 in
N/A 22.60 Millimeter (mm) Maximum Size 1-Ear Carbon Steel Clamp with Mechanical Interlock N/A 0.276 in7.00 mm N/A 0.890 in22.60 mm N/A 19.80 mm0.780 in
N/A 24.10 Millimeter (mm) Maximum Size 1-Ear Carbon Steel Clamp with Mechanical Interlock N/A 0.276 in7.00 mm N/A 0.949 in24.10 mm N/A 21.30 mm0.839 in
N/A 25.60 Millimeter (mm) Maximum Size 1-Ear Carbon Steel Clamp with Mechanical Interlock N/A 0.276 in7.00 mm N/A 1.008 in25.60 mm N/A 22.80 mm0.898 in
N/A 27.10 Millimeter (mm) Maximum Size 1-Ear Carbon Steel Clamp with Mechanical Interlock N/A 0.276 in7.00 mm N/A 1.067 in27.10 mm N/A 24.00 mm0.945 in
N/A 28.60 Millimeter (mm) Maximum Size 1-Ear Carbon Steel Clamp with Mechanical Interlock N/A 0.276 in7.00 mm N/A 1.126 in28.60 mm N/A 25.50 mm1.004 in
N/A 30.10 Millimeter (mm) Maximum Size 1-Ear Carbon Steel Clamp with Mechanical Interlock N/A 0.276 in7.00 mm N/A 1.185 in30.10 mm N/A 27.00 mm1.063 in
N/A 31.60 Millimeter (mm) Maximum Size 1-Ear Carbon Steel Clamp with Mechanical Interlock N/A 0.276 in7.00 mm N/A 1.244 in31.60 mm N/A 28.50 mm1.122 in
N/A 33.10 Millimeter (mm) Maximum Size 1-Ear Carbon Steel Clamp with Mechanical Interlock N/A 0.276 in7.00 mm N/A 1.303 in33.10 mm N/A 30 mm1.181 in
N/A 34.60 Millimeter (mm) Maximum Size 1-Ear Carbon Steel Clamp with Mechanical Interlock N/A 0.276 in7.00 mm N/A 1.362 in34.60 mm N/A 31.50 mm1.240 in
N/A 36.10 Millimeter (mm) Maximum Size 1-Ear Carbon Steel Clamp with Mechanical Interlock N/A 0.276 in7.00 mm N/A 1.421 in36.10 mm N/A 33.00 mm1.299 in
N/A 37.60 Millimeter (mm) Maximum Size 1-Ear Carbon Steel Clamp with Mechanical Interlock N/A 0.276 in7.00 mm N/A 1.480 in37.60 mm N/A 34.50 mm1.358 in
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