4 Pack 300mm 2020 Series Aluminum Extrusion Profiles T Slot Rails For 3D Printer Build Gear European Standard High Precision Linear Rails With Protective Film For Safer Shipping

4-Pack 300mm 2020 Aluminum Extrusion Profiles for Printers
✔️ 4 pieces, 300mm length, 20x20mm cross-section, black finish

These 2020-series aluminum extrusion profiles are used to build rigid, modular frames for machines, enclosures, and DIY projects. Each 300mm piece ships with a protective film to prevent scratches during shipping.

✅ Model: 20mm x 20mm cross-section
✅ Size: 300 x 20 x 20 (L x W x H)
✅ Pack: 4 pcs 300mm profiles
✅ Color: Black
✅ End treatment: End is not tapped; hole size is 5mm. If tapping, thread groove diameter must exceed 5mm
✅ Protective film on each profile during transport

💡 What is a 2020 aluminum extrusion profile commonly used for in DIY and industrial frames?

They provide rigid, modular framing for machines, enclosures, and automation projects.

- 20x20mm cross-section
- 300mm length
- compatible with T-slot connectors and accessories
- widely used in printers, CNCs, robotics
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