Hose End Cap Screw Thread Protector Cover - 6mm Inner Dia - Black - 100pcs - uxcell

These silicone hose end caps are versatile components suitable for a wide range of applications, i...

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OnBuy.com6Mm Inner Dia Rubber Hose End Cap Screw Thread Protector Cover Black 100Pcs 604267573996
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Product Information

Full details

The uxcell 6mm Hose End Cap set is designed for mechanics, automotive enthusiasts, and DIY hobbyists who need a reliable, high-quality solution for sealing open-ended pipes or protecting exposed threaded hardware. These silicone caps provide a snug, flexible seal that prevents debris ingress and fluid leaks, making them ideal for silicone vacuum lines and alloy pipes; however, they are not intended for high-pressure fuel or hydraulic line applications, which should always use reinforced professional-grade fittings.

All features

Branduxcell

Extended Product Information

FAQs

Can these be used for fuel lines?

No, these are intended for vacuum or protective sealing purposes and are not rated for high-pressure fuel line applications.

Are these caps reusable?

Yes, as long as they have not been punctured or subjected to extreme heat that causes the material to harden, they can be removed and reused.

What is the inner diameter of these caps?

These caps feature a 6mm inner diameter.

Can I use these on exterior hardware?

Yes, they provide an excellent seal against moisture, which helps prevent rust and corrosion on exterior screw threads.

How many pieces are included?

This set includes 100 individual hose end caps.

Will these melt near an engine block?

They are made of heat-resistant silicone, but they should be kept away from direct contact with exhaust manifolds or open flames.

Troubleshooting

Cap slides off during use

Ensure the pipe or bolt diameter is exactly 6mm and clean the surface of all oil or lubrication before reapplying.

Difficulty pushing the cap onto the pipe

Use a small amount of water to lubricate the inside of the cap; avoid using petroleum-based lubricants as they may degrade the silicone.

Cap tears during installation

Check the pipe for sharp burrs or metal edges that may be puncturing the material; file down any sharp edges before installing a new cap.

Pros and Cons

Pros

  • Flexible material allows for easy installation and removal
  • High heat resistance suitable for engine compartment use
  • Provides an effective seal against dust, dirt, and moisture
  • Large pack size is cost-effective for professional mechanics
  • Matte black finish provides a clean, professional look

Cons

  • Not suitable for high-pressure fuel injection lines
  • Silicone can swell if exposed to constant direct contact with certain oils
  • Lack of integrated locking mechanism means they may slip under extreme vibration

Setup, Compatibility & Care

Installation requires no specialized tools; simply press the cap onto the desired 6mm pipe or bolt. To ensure maximum longevity, wipe the surface clean of oil or grease before application to ensure the silicone grip is not compromised. If the caps feel too loose, verify the pipe diameter is exactly 6mm. For maintenance, these caps can be removed periodically for inspection; wash with mild soap and water if they become dirty, and air dry before reinstalling. Avoid using sharp tools during removal to prevent accidental tearing of the silicone material.

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