YIDU69Q 10 Pcs Flat Joining Plates for 2020/2040 T-Slot Aluminum Profiles – 8-Hole 20 Series Plate, Black

Elevate your modular builds with YIDU69Q 10 pack of flat joining plates, crafted for 2020 and 2040 T-slot aluminum profiles. These straight plates help you create clean, stable frames, enclosures, or workstations with precise alignment and a sleek black finish that blends with many setups. Designed for everyday projects, they offer a practical solution for quick, connection-friendly assemblies without sacrificing finish or strength.

Key features at a glance

• External joining plate for connecting metric 2020 or 2040 aluminum profiles
• Thickness: 4 mm; pre punched holes sized Φ5.5 mm to fit #10 screws
• Hole spacing on center: 20 mm (3/4 inch)
• Material: Aluminum alloy 6063; surface treatment: spray painting for a uniform black finish
• Package includes 10 x 20 Series aluminum profile straight plate connectors

Durability meets practicality in a compact design. The 6063 aluminum alloy delivers lightness with solid rigidity, while the spray-painted surface provides a consistent look across the set. The 8 hole pattern supports flexible attachment points, making it easier to align joints during assembly and adjust configurations as your project evolves.

Real-world uses and benefits

• Build sturdy frames and protective enclosures for modular setups, with clean lines and dependable fastenings
• Create reliable right-angle joints between profiles, enabling stable corners for workstations, racks, or display stands
• Assemble reconfigurable systems that can be reworked as needs change, thanks to standardized hole spacing and screw sizing

While these plates are designed for mechanical joining, users often appreciate the combination of a durable aluminum base, a smooth, professional black finish, and the convenience of ready-to-use holes that accept common hardware. They are suited for hobby projects, light fabrication, and small-scale professional builds where modularity and repeatability matter.

To get the most from this set, pair the plates with compatible 20 Series profiles and #10 screws for a quick, repeatable assembly process. The result is a cohesive look with predictable performance across multiple configurations, helping you focus on design and layout rather than hardware compatibility.