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Home  »  Fastners  »  Outside Fastners

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Outside Fastners

40 Series 4 Hole - 15 Degree Angled Flat Plate
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40 Series 4 Hole - 15 Degree Angled Flat Plate

Part No: 40-4316

$18.13

40 Series 4 Hole - 60 Degree Angled Flat Plate
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40 Series 4 Hole - 60 Degree Angled Flat Plate

Part No: 40-4361

$19.09

40 Series 7 Hole - Cross Flat Plate
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40 Series 7 Hole - Cross Flat Plate

Part No: 40-4335

$33.70

40 Series 16 Hole - Cross Flat Plate
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40 Series 16 Hole - Cross Flat Plate

Part No: 40-4370

$47.45

40 Series 6 Hole - 30 Degree Angled Flat Plate
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40 Series 6 Hole - 30 Degree Angled Flat Plate

Part No: 40-4330

$21.45

40 Series 2 Hole- 39mm Slotted Inside Corner Bracket with Dual Support
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40 Series 2 Hole- 39mm Slotted Inside Corner Bracket with Dual Support

Part No: 14074

$5.58

Outside Fasteners: Build Bold, Build Strong

When you’re designing with modular aluminium systems, not every connection can—or should—stay hidden. Sometimes, you need hardware that’s loud and proud. Hardware that doesn’t just support the structure, but shows up as part of the design. That’s where outside fasteners come in.

At Modular1, we like to say: form meets function right at the corner bracket. Outside fasteners are more than just connectors—they’re confidence in your frame. They’re visible strength, bold reinforcement, and the freedom to build bigger, stronger, and smarter.

Let’s understand what outside fasteners do, where they shine, and why they’re absolutely essential in your modular toolkit.

What Are Outside Fasteners?

Simply put, these fasteners are hardware components that sit on the outside of your T-slot aluminium profile system. Unlike inside fasteners which are hidden inside the slots, these fasteners are mounted externally—typically at joints, corners, and intersections where added strength or structural support is needed.

They're often used in high-stress areas, where a little extra reinforcement goes a long way. And they’re the go-to option when speed and simplicity matter just as much as aesthetics.

Why Use Outside Fasteners?

There are a few reasons people reach for outside fasteners—and they're not just about brute strength (though there's plenty of that too).

Quick Assembly

One of the biggest perks of using outside fasteners is how fast they are to install. Whether it’s a corner bracket or a gusset, you’re looking at a tool-friendly, no-fuss setup that’s ideal for prototyping, temporary structures, or when you just want to move fast.

Visible Reinforcement

In environments where vibration, movement, or heavy weight is part of daily operations, external fasteners give you that added peace of mind. You can see the support, trust the hold, and adjust easily if needed.

Flexible & Reusable

Just like everything in the Modular 1 range, these fasteners are made to be reused and reconfigured. Take it apart. Move it. Build it again. They’re ready.

Popular Outside Fastener Types

We stock a curated range of fasteners, each designed to solve a specific structural need—without compromising on looks or ease of use.

Corner Brackets

The classic. A corner bracket connects two or three profiles at 90-degree angles, providing rigid support at the corners of your frame. Whether you’re building enclosures, carts, or shelving units, these are an essential part of your build kit.

Available in a variety of shapes and sizes—from small, discreet brackets to heavy-duty versions for industrial builds—our corner brackets are pre-drilled, easy to align, and made from high-strength aluminium or steel.

Plates

Plates are flat, external fastening components that connect profiles along one or more axes. Think of them as the “flat mates” of your extrusion system. Perfect for butt joints, mid-frame reinforcements, or adding rigidity to open spans.

We offer single-axis plates, multi-hole plates, and angle plates in various thicknesses. They’re clean, functional, and super versatile.

Joining Plates

These are your best friends when connecting two profiles end-to-end. Joining plates provide a strong surface-to-surface connection, ensuring the profiles remain aligned and stable under load.

Whether you’re building long spans or joining sections in the field, these plates make the job simple and solid.

Gussets

Need serious strength? Gussets are here for the heavy lifting. These reinforced brackets typically have a triangular profile that braces the corner or junction, preventing flexing or movement over time.

They’re ideal for high-stress builds—like machine bases, robotics enclosures, or mobile frames that experience vibration.

Slotted Corner Brackets

Need flexibility on alignment or mounting positions? A slotted corner bracket gives you exactly that. With elongated mounting holes, these brackets allow for fine-tuning during installation—especially helpful when working with pre-existing holes or tricky angles.

They offer a forgiving install without sacrificing strength. Once tightened, they hold like a rock.

When to Choose Outside Fasteners Over Internal Ones

Both fastener types have their place—but outside fasteners often take the lead when:

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    Speed matters (no slot machining or precise drilling required)

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    The joint is under high mechanical stress

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    You want visible, adjustable support

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    Your build will be taken apart or moved frequently

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    You’re retrofitting or modifying an existing structure

Think of them as your on-the-fly solution to robust building. They're straightforward, strong, and forgiving—even if your first cut wasn’t perfect.

Real-World Applications

Here are just a few examples of how customers across Australia are using our outside fasteners every day:

Warehousing & logistics

Secure shelving systems with gussets and corner brackets

Workstations & benches

Reinforced joints using plates and slotted brackets

Display systems

Quick-to-assemble trade show setups using standard corner brackets

Automation equipment

Heavy-duty gussets and joining plates for robotic enclosures

Agricultural tech

Modular field equipment frames using robust external joints

From Brisbane warehouses to Perth R&D labs, these components keep Aussie builds strong and smart.

All Modular1 outside fasteners are made from premium-grade aluminium or steel, with durable finishes that resist corrosion and wear. Many are anodised or zinc-coated for extra protection in harsh environments—so they’re as tough as the Aussie sun.

Need Help Choosing?

We get it—there are a lot of options. If you’re not sure whether to go with a corner bracket, a plate, or a gusset, give us a shout. Our team has hands-on experience with thousands of builds, and we’ll help you choose the right fastener for the job—no guesswork required.

We’ll even check compatibility with your existing profiles or offer alternatives for custom applications.

Build Smarter with Modular 1

At Modular 1, we don’t believe in overcomplicating things. Our hardware is designed to do what it says on the tin—make your build easier, stronger, and better-looking.

Whether you’re a first-timer or a full-time engineer, we’ve got the outside fasteners that make every project more efficient and more professional.

Frequently Asked Questions

Are Modular 1 outside fasteners compatible with other aluminium profile systems in Australia?

Yes, they are. Our outside fasteners—including corner brackets, joining plates, and gussets—are designed to be compatible with the most common profile systems available in Australia (such as 20, 30, 40, and 45 series extrusions). If you’re using a local supplier, chances are our hardware will fit. Feel free to send us a profile diagram for double-checking.

Can I use outside fasteners for mobile or transportable structures?

Absolutely. Many customers across Australia use our fasteners for mobile frames like carts, enclosures, and modular displays. Corner brackets and gussets are especially great for these applications because they provide visible, high-strength reinforcement that stands up to vibrations and movement during transport.

Are slotted corner brackets adjustable after installation?

Yes—they're designed for flexibility. Slotted corner brackets allow for slight positional adjustments during installation, which is incredibly useful when aligning multiple profiles or retrofitting older frames. Once everything is aligned, just tighten them down and they’ll hold securely.

Can these fasteners handle Australia's harsh outdoor conditions?

Definitely. We stock fasteners made from high-grade aluminium and zinc-plated or stainless steel—perfect for outdoor builds, even in coastal regions. For extra peace of mind, we recommend using stainless versions if your structure will be permanently outdoors or exposed to high moisture.

Do you offer express delivery across Australia?

Yes, we do. We understand the urgency of industrial and workshop projects, so we offer express shipping nationwide—including Sydney, Melbourne, Perth, Adelaide, and regional areas. Most orders ship the same day if placed before our cut-off time.