Hole Plugs

From $2.90
From $2.90
Shipping calculated at checkout.
Select your size

Our hole plugs are available in a range of sizes (shown in mm). Each plug is precisely CNC-machined from high-quality 6060 T5 aluminium, known for its excellent strength-to-weight ratio, corrosion resistance and smooth surface finish. Designed for a flush, professional look, these aluminium hole plugs provide a permanent mechanical fit without the need for adhesives or welding.

With a total thickness of 3mm and a subtle chamfer on the edge, they install cleanly and sit securely in place - ideal for both indoor and outdoor applications where durability, performance and visual appeal matter.

HOW THICK ARE HOLE PLUGS?

DO I NEED HOLE PLUGS OR ROUND END CAPS?

HOW LONG WILL MY ORDER TAKE?

WHY CHOOSE OUR ALUMINIUM HOLE PLUGS?

Need a custom size?

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Product details

Using Hole Plugs

Our aluminium hole plugs are ideal for covering exposed holes in extrusions, frames or structural tubing. Whether you need to seal unused drill holes or improve the visual finish of a structure, these plugs are designed to offer a tight mechanical fit without adhesive or welding. Hole plugs are supplied in mill-finish aluminium ready to be powder coated, wood grain imaged or anodised. 

Common uses include:

  • Concealing fastener holes in fencing or balustrades

  • Finishing off industrial aluminium structures

  • Providing a flush, professional look to metalwork projects

Thanks to their low-profile design and easy installation, these plugs are suitable for both DIY and commercial use.

If you're unsure about sizing or need help choosing between plug types, we're here to assist. Contact us and we’ll help you find the perfect fit.

Hole Plugs

Available Sizes

Search result not found!
x
16mm
SKU: 16HP
$2.90
Quantity Discount Price
1 0% $2.90
  • 1 0% $2.90
  • 50 15% $2.47
  • 100 20% $2.32
  • 500 25% $2.18
  • 1000 30% $2.03
x
19mm
SKU: 19HP
$3.10
Quantity Discount Price
1 0% $3.10
  • 1 0% $3.10
  • 50 15% $2.64
  • 100 20% $2.48
  • 500 25% $2.33
  • 1000 30% $2.17
x
20mm
SKU: 20HP
$3.20
Quantity Discount Price
1 0% $3.20
  • 1 0% $3.20
  • 50 15% $2.72
  • 100 20% $2.56
  • 500 25% $2.40
  • 1000 30% $2.24
x
21mm
SKU: 21HP
$3.20
Quantity Discount Price
1 0% $3.20
  • 1 0% $3.20
  • 50 15% $2.72
  • 100 20% $2.56
  • 500 25% $2.40
  • 1000 30% $2.24
x
22mm
SKU: 22HP
$3.30
Quantity Discount Price
1 0% $3.30
  • 1 0% $3.30
  • 50 15% $2.81
  • 100 20% $2.64
  • 500 25% $2.48
  • 1000 30% $2.31
x
25mm
SKU: 25HP
$3.40
Quantity Discount Price
1 0% $3.40
  • 1 0% $3.40
  • 50 15% $2.89
  • 100 20% $2.72
  • 500 25% $2.55
  • 1000 30% $2.38
x
28mm
SKU: 28HP
$3.60
Quantity Discount Price
1 0% $3.60
  • 1 0% $3.60
  • 50 15% $3.06
  • 100 20% $2.88
  • 500 25% $2.70
  • 1000 30% $2.52
x
30mm
SKU: 30HP
$3.70
Quantity Discount Price
1 0% $3.70
  • 1 0% $3.70
  • 50 15% $3.15
  • 100 20% $2.96
  • 500 25% $2.78
  • 1000 30% $2.59
x
32mm
SKU: 32HP
$3.70
Quantity Discount Price
1 0% $3.70
  • 1 0% $3.70
  • 50 15% $3.15
  • 100 20% $2.96
  • 500 25% $2.78
  • 1000 30% $2.59
x
38mm
SKU: 38HP
$4.00
Quantity Discount Price
1 0% $4.00
  • 1 0% $4.00
  • 50 15% $3.40
  • 100 20% $3.20
  • 500 25% $3.00
  • 1000 30% $2.80
x
43mm
SKU: 43HP
$4.20
Quantity Discount Price
1 0% $4.20
  • 1 0% $4.20
  • 50 15% $3.57
  • 100 20% $3.36
  • 500 25% $3.15
  • 1000 30% $2.94
x
45mm
SKU: 45HP
$4.60
Quantity Discount Price
1 0% $4.60
  • 1 0% $4.60
  • 50 15% $3.91
  • 100 20% $3.68
  • 500 25% $3.45
  • 1000 30% $3.22

Order quality plugs or caps today at Nelsons CNC

Choose from our standard hole plug sizes ranging from 16mm to 43mm, perfect for most aluminium extrusions and structural applications. Select your size above to get started, or browse our full aluminium end caps collection for more options.

If you need a specific size not offered in our standard lineup, request a custom size. Rest assured, all plugs are CNC-machined for consistency, clean finishes and a secure press-fit.

nelsons

Aluminum End Caps
will finish off the job beautifully

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30-Days Return

If you are not satisfied with your product, contact us to organise an exchange or refund within 30 day of purchase.

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Customer Support

Unsure what size end cap you require? Looking for a custom sized cap? Our expert team are available to answer any questions.

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Square End Caps

Aluminium End Caps

Tightly fitting Round end caps

Round End Caps

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