Set of 10 Spring Band Hose Clamps (21mm)
For sale is a lot of 10 Constant Tension Spring Clamps. These are sized for hoses with an outer diameter of 21mm, making them ideal for heavy-duty fuel, oil, or heater lines in automotive and aviation applications.
Size Identification: Stamped with "21" on the tab. Designed to fit hoses with an Outer Diameter (OD) of 21mm (typically 1/2" or 12mm ID reinforced hoses).
Technical Specifications
| Type |
Spring Band Clamp (Self-Adjusting) |
| Nominal Size |
21mm |
| Material |
Spring Steel (Black Oxide Finish) |
| Typical Application |
Oil Lines, Heater Hoses, Breather Tubes |
| Quantity |
10 Clamps |
Benefits
- Constant Tension: Automatically expands and contracts with the hose during temperature cycles, preventing cold-flow leaks.
- Vibration Proof: Will not loosen over time like screw clamps.
- Hose Friendly: Smooth edges prevent cutting into the rubber hose.
Shipping
We ship worldwide. Items will be packed securely.
- Shipping Cost: Flat Rate International ($14.00).
- Dispatch: 3-5 Business Days.