Description
Technical Overview
Technical users integrate this precision-engineered hardware kit into 40 Series aluminium extrusions to create hidden, perpendicular connections between structural profiles. Specifically, the system utilizes a specialized end fastener clip paired with a button head socket cap screw. When you assemble these components, they provide a fixed 90-degree joint that remains entirely internal to the profile slots. Consequently, this fastening method works exceptionally well for applications that require a clean finish without the physical interference of external brackets. Furthermore, the fastener clip features integrated winged tabs that seat directly within the T-slot during installation. As a result, this specialized orientation prevents profile rotation under load. Because you choose this hardware configuration, you successfully preserve the structural stability and precise geometric alignment of your entire framework assembly.
Applications
Engineers incorporate this hidden fastening kit into structural framing, CNC machine builds, and industrial automation frameworks where they must prioritize aesthetic clarity and space efficiency. For example, assembly teams deploy this hardware solution when building modular conveyor systems, robotic configurations, and workspace workstations using 4040 or 4080 structural profiles. Because the entire mechanical connection remains completely hidden inside the channel, you can maintain completely unobstructed profile faces. For this reason, technicians frequently apply the hardware in custom mechanical designs, storage cabinets, and industrial benches. By doing so, you ensure that external mounting surfaces remain clear for the subsequent installation of clean panels, safety enclosures, or specialized automation accessories. Thus, builders achieve strong joint rigidity without sacrificing usable workspace footprint.
40 Series End Fastener Type A Clip Technical Drawings – 4040:
| A | B | C | D | E | F | G | kg |
| 27.7 | 17 | 7.7 | 9 | 35 | 2 | 10 | 0.01 |
40 Series End Fastener Type A Clip Technical Drawings – 4080:
| A | B | C | D | E | F | G | kg |
| 70 | 20 | 8 | 8.5 | 75 | 2 | 9 | 0.018 |
Products to Pair with End Fastener Type A – 40 Series
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Allen Key Wrench 9-Piece Set
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M8 Drill Tap
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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
Maker Store Tips and Tricks
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Ensure that you thread the button head socket cap screw securely through the clip before seating the assembly into the extrusion profile.
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Verify that the integrated winged tabs are fully seated within the T-slot tracks to prevent profile rotation during final tightening.
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Periodically check the tightness of the joint in assemblies subjected to continuous machine vibration or dynamic loading profiles.
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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