Fixed Inside Fastener – 40 Series

$4.15 Inc. GST

This cast zinc structural connection component establishes rigid 90-degree joints between 40 Series T-Slot aluminium extrusions by nesting directly within the end of one profile, allowing an intersecting profile to slide flush against it. The mechanical connection locks via an angled screw entry driving into the opposing extrusion slot, creating joint rigidity without requiring external bracketry. Typical applications include industrial machinery framing, automated test fixtures, CNC machine structures, cleanroom enclosures, and workbenches utilizing modular profile configurations.

 


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Description

Fixed Inside Fastener: Secure Right Angle Connections

Technical Overview

Engineers actively choose the Fixed Inside Fastener when they want to establish rigid right-angle (90-degree) joints between 40 Series T-Slot aluminum extrusions. Because the manufacturer crafts this structural connection component from robust cast zinc, the hardware easily withstands demanding mechanical loads. To begin the assembly process, the fastener nests directly within the end of one extrusion profile. Consequently, an intersecting profile slides flush against it at a precise right angle. Immediately following this step, an installer drives a small screw at an angle directly into the opposing extrusion slot. By doing so, this angled entry locks the connection mechanically and secures the joint. Furthermore, this specific mounting method creates high-joint rigidity. As a direct result, the component provides seamless structural integration within modular machinery framing, safety enclosures, and custom automation assemblies.

Applications

Assemblers primarily utilize the Fixed Inside Fastener when they build industrial framing, automated test fixtures, and CNC machine structures from 40 Series T-slot profiles. For instance, its internal mounting design provides a completely flush external finish. Therefore, technicians select this part for cleanroom structures, workbenches, and enclosures where they must avoid bulky external bracketry. In addition to these use cases, builders frequently deploy this connector in heavy-duty structural frames. Because these frames require precise alignment under static loads, this hardware proves essential. Ultimately, this streamlined design optimizes modular configurations, especially when teams demand quick assembly alongside long-term joint stability.

Technical Specifications

Specification Value
Material Cast Zinc
Compatibility 40 Series T-Slot Profiles
Weight 12g
Dimensions 28×13.4×8.5mm

Drawings

Fixed Inside Fastener

A B C D E F G kg
28mm 13.4mm 8.2mm M8 8mm 4mm 8.5mm 0.012

Maker Store Tips and Tricks

  • Ensure the receiving extrusion face is cut perfectly square ($90^\circ$) to achieve maximum structural rigidity.

  • Do not over-tighten the angled set screw to prevent stripping the thread channel within the zinc casting.

  • Use a drop of medium-strength threadlocker in high-vibration applications to prevent the connection from backing out over time.

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;

  1. 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.
  2. 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.
  3. Fasteners: Bolts, screws, and nuts are required to attach the brackets and connectors to the T-Slot extrusions securely.
  4. 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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Additional information

Weight 0.012 kg
Dimensions 2.8 × 1.34 × .85 cm