10Pcs Black Plastic End Caps for EU Aluminum Profile 2020–4545

Keep your aluminum extrusion frames looking clean and professional with these durable black nylon plastic end cap cover plates. Designed to fit standard EU aluminum profiles, these end caps snap neatly into open slot ends, protecting the profile interior from dust, debris, and damage while delivering a polished finish to any build or fabrication project.

Made in Mainland China.

Key Features

• Universal Compatibility: Fits popular EU aluminum profile sizes — 20×20, 20×40, 30×30, 30×60, 40×40, 40×80, and 45×45 mm.
• High-Quality Nylon Plastic: Sturdy, impact-resistant material that holds its shape and color over time.
• Neat Finish: Covers open profile ends to give your frame, rack, or assembly a clean, finished look.
• Easy Installation: Simply press into place — no tools or adhesives required.
• Value Pack: Comes in a set of 10 pieces so you have plenty for your project.
• Color: Black — blends seamlessly with standard black anodized aluminum extrusions.

Specifications

• Material: Nylon plastic
• Color: Black
• Compatible Sizes: 20×20 / 20×40 / 30×30 / 30×60 / 40×40 / 40×80 / 45×45 mm
• Quantity: 10 pieces per pack
• Note: Due to manual measurement, please allow a tolerance of 1–3 mm. Actual color may vary slightly from screen images due to monitor differences.

What's in the Box?

• 10 × Black Plastic End Cap Cover Plates

Perfect For

• 3D printer frames and CNC machine builds
• Industrial workbenches and racking systems
• DIY aluminum extrusion projects and T-slot structures
• Robotics frames, camera rigs, and automation setups

Looking for more tools and accessories for your DIY and metalworking projects? Check out our Air Compressor Pressure Gauge and our Garden Pruner Shears for more workshop essentials.

Learn more: OSHA on eye and face protection

Frequently Asked Questions

Q: What aluminum profile sizes are these black end caps compatible with?

A: These plastic end cap cover plates are designed to fit standard EU aluminum extrusion profiles in the following sizes: 20×20, 20×40, 30×30, 30×60, 40×40, 40×80, and 45×45 mm. Always verify your profile's exact outer dimensions before ordering, and allow for a 1–3 mm manual measurement tolerance.

Q: Are these end caps easy to install without tools?

A: Yes! These nylon plastic end caps are designed for a simple press-fit installation. Just align the cap with the open end of your aluminum profile and press firmly until it snaps into place — no tools, glue, or fasteners needed.

Q: What material are these end caps made from?

A: The end caps are made from high-quality nylon plastic. This material is lightweight yet durable, offering good resistance to impact and wear, making it well-suited for both DIY hobby builds and light industrial applications.