Description
Technical Overview
Engineers design the 3×2 Hole Joining Plate – 40 Series specifically to create high-strength connections between 40 Series T-Slot aluminum extrusions. This robust structural component features a clear configuration of two columns of three holes. Consequently, this precise alignment layout greatly enhances mounting stability across different profile joints. To achieve this, the plate mounts directly onto the flat face of your structural profiles. It functions actively as an external tie-plate. As a result, this component securely bridges and locks multiple extrusion sections together. Furthermore, it provides essential, rigid reinforcement for your heavy-duty framing projects and CNC routing frameworks. Builders also rely heavily on this plate to stabilize complex automation cells and general mechanical assemblies that utilize standard 40 Series hardware.
Applications
Builders frequently utilize the 3×2 Hole Joining Plate – 40 Series in structural frame construction. They select this component because multi-axis rigidity and overall joint strength remain critical for project success. Specifically, this plate reinforces right-angle joints and parallel profile extensions with ease. It also successfully secures high-load intersections on large-scale machinery frameworks. Moreover, manufacturers engineered this component for seamless integration with 40 Series T-Slot linear extrusions. You will typically fasten the assembly using standard M8 hardware. Therefore, the plate works exceptionally well for industrial automation enclosures and precise linear motion gantries. Ultimately, it delivers highly predictable mechanical load distribution for all your custom workshop fixtures.
Technical Specifications
Drawings

| A | B | kg |
| 80mm | 120mm | 0.155 |
Maker Store Tips and Tricks
-
Ensure all T-nuts are fully rotated and engaged within the extrusion channel prior to applying final torque to the M8 fasteners.
-
Use a precision square during assembly to verify the orthogonal alignment of the profiles before tightening the 3×2 hole pattern.
-
In applications subject to dynamic loading or continuous machinery vibration, apply a medium-strength thread-locking fluid to the mounting screws.
What makes T-Slots such an easy assembly task?
Building frames out of T-Slot extrusions is easy because they eliminate the need for specialized tools or welding, simplifying the assembly process. Building frames using T-Slot Linear Rail will require;
- 40 Series T-Slot Extrusions: These are the main structural components, usually made of aluminium, with slots along their lengths that allow you to easily connect various parts and accessories.
- 40 Series Brackets and Connectors: These are specialized components designed to fit into the T-Slot extrusions and secure them together at various angles. They include corner brackets, T-nuts, L-shaped brackets, and other connectors.
- Fasteners: Bolts, screws, and nuts are required to attach the brackets and connectors to the T-Slot extrusions securely.
- Tools: Basic hand tools like wrenches, Allen keys (hex keys), and screwdrivers are necessary for assembly. Additionally, a saw may be needed to cut the T-Slot extrusions to your desired lengths.
Unsure if this product is compatible with our aluminium extrusions?
Look for the Maker Store Compatibility Badges!



















