Description
Technical Overview
The 40 Series Central Connector functions as a high-strength internal fastener specifically engineered to create rigid, fixed-type connections within 40 Series T-Slot aluminium extrusion layouts. Constructed from durable steel with a corrosion-resistant zinc-plated finish, this structural component establishes a stable joint internally rather than externally.
Furthermore, because this fastener utilizes a space-efficient internal design, it entirely eliminates the need for bulky external mounting brackets. This mechanical configuration provides a completely unobstructed, clean aesthetic along the profile faces, allowing for seamless integration into custom modular enclosures and various automated systems.
Applications
Builders and structural technicians primarily use this fixed-type internal connector to assemble structural frameworks requiring high connection strength and space efficiency. Consequently, it serves as a reliable mechanical connection point for building industrial automation frameworks, precision CNC machine frames, modular workstations, and heavy-duty assembly lines.
In addition, the precision-machined geometry of the connector makes it highly compatible with standard 40 Series T-Slot profiles. This clean structural alignment allows builders to join profiles tightly without disrupting external tracks, rendering the hardware ideal for custom enclosures and complex structural extrusion-based builds.
Package Includes:
- 1 x Central Connector (Chamber and Pin) – 40 Series
40 Series Central Connector Technical Drawings:
| A | B | C | D | E | Weight |
| 33mm | 6.7mm | Φ14mm | Φ11mm | 18.5mm | 21g |
Maker Store Tips and Tricks
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Drill an 11mm diameter hole across the extrusion profile at a distance of 15mm to 17.5mm from the profile edge to ensure proper pin reach.
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Verify that the internal passage of the Central Connector Chamber aligns perfectly with the profile’s T-slot cavity prior to inserting the connector pin.
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Slide the secondary extrusion over the exposed pin head and firmly torque the interior set screw within the chamber to complete the high-strength joint.
Products to Pair with Central Connector – 40 Series
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Allen Key Wrench 9-Piece Set
$34.13 Inc. GST Add to cart -

T-Slot 40 x 40mm – 40 Series – HEAVY Duty – Silver
Price range: $27.57 through $92.88 Inc. GST Select options This product has multiple variants. The options may be chosen on the product page -

T-Slot 40 x 80mm – 40 Series – HEAVY Duty – Silver
Price range: $72.74 through $225.21 Inc. GST Select options This product has multiple variants. The options may be chosen on the product page
What makes T-Slots such an easy assembly task?
Building frames out of T-Slot extrusions is easy because they eliminate the need for specialised 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 specialised 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.
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