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10Pcs Black Square Plastic End Caps – Tube & Pipe Box Section
10Pcs Black Square Plastic End Caps – Tube & Pipe Box Section
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Finish the Job Neatly & Safely with Square Tube End Caps
These 10-pack black plastic blanking end caps are the perfect finishing touch for any project involving square box section tubing or hollow pipe. Whether you're building furniture, shelving, railings, or doing home improvement work, these snap-in caps deliver a clean, professional look while protecting both you and your metalwork.
Key Features
- Multiple Sizes Available: 15×15mm, 20×20mm, 25×25mm, 30×30mm, 40×40mm, and 50×50mm — please specify your required size at checkout.
- Ribbed Inner Design: Internal ribs grip firmly inside the tube for a secure, rattle-free fit — no adhesive needed.
- Covers Sharp Edges: Caps sharp, potentially hazardous tube ends to make your finished project safe to handle and touch.
- Prevents Rust & Corrosion: Seals the hollow tube interior, keeping moisture and water out to prevent rusting from the inside out.
- Versatile Use: Ideal for square box section, hollow steel tubing, aluminum profiles, furniture legs, and structural frames.
- Easy Assembly: Simply press-fit into tube ends — no tools required.
- 10 Pieces Per Pack: Great value multi-pack for projects of all sizes.
Specifications
| Material | Durable Black Plastic (PE/PP) |
| Color | Black |
| Quantity | 10 Pieces |
| Available Sizes | 15×15mm, 20×20mm, 25×25mm, 30×30mm, 40×40mm, 50×50mm |
| Country of Origin | Made in China |
Where to Use Them
These end caps work great in a wide range of settings:
- DIY furniture and shelving frames
- Steel and aluminum square tubing in workshops or garages
- Fence posts and garden structures
- Railings, handrails, and safety barriers
- Automotive fabrication and roll cages
- Industrial equipment and machinery frames
⚠️ Size Note: Please specify your preferred size when ordering (15×15mm, 20×20mm, 25×25mm, 30×30mm, 40×40mm, or 50×50mm). If no size is selected, one will be sent at random.
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For guidance on safe construction practices and proper use of tools and hardware, visit the U.S. Occupational Safety and Health Administration (OSHA).
Frequently Asked Questions
Q: What sizes do these square plastic blanking end caps come in?
A: These end caps are available in six sizes: 15×15mm, 20×20mm, 25×25mm, 30×30mm, 40×40mm, and 50×50mm. Simply note your required size at checkout to receive the correct size. If no size is specified, one will be dispatched at random.
Q: How do I fit these plastic tube end caps onto my square box section?
A: These caps are designed for easy press-fit installation. The ribbed inner surface grips the inside walls of the tube securely, so you just push them firmly into the open end of the tube — no glue, screws, or tools needed.
Q: Will these end caps prevent rust inside my metal tubing?
A: Yes! By capping the open ends of hollow square tubes, these plastic blanking caps seal out moisture and water ingress, significantly reducing the risk of internal rusting and corrosion over time.
Q: Are these end caps suitable for outdoor use?
A: These caps are made from durable plastic and are suitable for general indoor and outdoor use. They are great for fence posts, garden structures, and outdoor railings, though prolonged UV exposure may affect their appearance over time.
