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Square Tube Adaptors - Stainless Steel Fitting 25-28mm
CASTOR NOT INCLUDED. SEE RELATED CATEGORIES BELOW FOR COMPATIBLE CASTORS.
This stainless-steel square tube adaptor is designed to enable secure mounting of castors or... Read Full Description
- Price
- 1 + £6.10 £5.08
- 20 + £5.58 £4.65
- 50 + £5.18 £4.32
- 100 + £4.62 £3.85
Frequently bought together
CASTOR NOT INCLUDED. SEE RELATED CATEGORIES BELOW FOR COMPATIBLE CASTORS.
This stainless-steel square tube adaptor is designed to enable secure mounting of castors or wheels into square hollow tube legs with an internal diameter between 25 mm and 28 mm. The adaptor expands inside the tube when the bolt is tightened, providing a tight, vibration-free grip — ideal for trolleys, benches, racks or equipment constructed from hollow metal tubing. It’s a straightforward solution for fitting castors without welding or custom fabrication.
Perfect for stainless-steel castors or heavy-duty wheels on frames, trolleys, mobile equipment or storage units built with square tubing.
Key Features
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Square-tube adaptor for internal tube diameter of 25–28 mm
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Stainless-steel construction — moisture-resistant, corrosion-resistant and durable
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Expanding cone-style fitting — expands inside the tube for secure, tight fixation
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Designed to work with compatible bolt-hole castors — no welding or drilling required
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Ideal for metal-tube frames, trolley legs or hollow leg furniture requiring castor mounting
Specifications
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Suitable Tube Internal Diameter: 25–28 mm (square tube)
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Material: Stainless steel bolt + expanding nylon / expander assembly
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Use With: Bolt-hole or single-bolt castors & wheels compatible with expander fittings
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Use Case: Hollow metal tube frames, trolleys, mobile benches, racks, machinery legs
Applications
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Workshop trolleys, carts and benches built on square tube frames
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Mobile storage racks and equipment stands
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Industrial work tables, fabrication benches, display frames
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Medical or laboratory trolleys needing corrosion-resistant fittings
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Any welded-frame replacement use — allowing easy castor installation into hollow tubing
Why Choose This Square Tube Adaptor
This adaptor provides a versatile, low-cost way to add mobility to framed equipment made from square metal tube. By expanding inside the tube and gripping firmly, it eliminates the need for welding or complicated fabrication — making castor installation easy, secure and removable if needed.
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25-28 |
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Delivery Charges
For a more detailed view of our delivery charges please visit our UK Delivery & Returns or International Delivery & Returns page.
Please note that our standard shipping rates do not apply to tubing orders. Tubing has its own unique shipping rate, which is automatically calculated at checkout. We've tailored these rates to ensure the best possible delivery service for these items!
UK Mainland
Please note final delivery cost is calculated at checkout based on order weight and destination.
| Delivery Option | Delivery Cost (£) |
|---|---|
| 2 Working Days Express Pack (for small orders) | £7.09 |
| 2 Working Days | From £9.13 |
| Next Working Day | From £10.66 |
| By 12 PM Next Working Day | From £16.83 |
| By 10:30 AM Next Working Day | From £23.46 |
| Saturday Delivery | From £17.85 |
| 3 Day Pallet Delivery (for large orders) | £100 |
Northern Ireland, Highlands and Islands
Please note delivery costs for Northern Ireland, Highlands, and Islands vary based on location and order weight.
| Delivery Option | Delivery Cost (£) |
|---|---|
| Northern Ireland (2-3 working days) | From £16.32 |
| Scottish Highlands (2-3 working days) | From £19.38 |
| Isle of Man (2-3 working days) | From £19.38 |
| Channel Islands (2-3 working days) | From £19.38 |
Delivery Surcharge for Highlands and Islands Postcodes:
Please note that the following postcodes in the Highlands and Islands of Scotland incur additional delivery charges due to their remote locations and the higher shipping costs associated with these areas.
Postcodes affected include:
AB31-AB56
FK17-FK21
HS1-HS9 (Outer Hebrides)
IV (Inverness and surrounding areas)
KA27-KA28 (Isle of Arran and Cumbrae)
KW (Kirkwall and Orkney)
PA20-PA78 (Argyll and Bute, Inner Hebrides)
PH15-PH50 (Perthshire and the Highlands)
ZE1-ZE3 (Shetland Islands)
These areas are subject to a delivery surcharge due to increased transportation costs and extended delivery times. We strive to keep our delivery charges as competitive as possible and appreciate your understanding when shipping to these regions.
For more information or to get a specific delivery quote, please contact our customer service team.
Returns
If you're not satisfied with your purchase, ordered the wrong size, or find the items unsuitable, return them within 28 days along with the delivery note and a brief explanation for a refund or exchange. Please contact us before returning items to ensure eligibility. Note that we cannot refund items damaged through use.
We recommend using a recorded and insured delivery method for returns, as we're not responsible for goods lost or damaged in transit. Keep proof of postage. Refunds typically do not cover original delivery costs, and returns of sack trucks, trolleys, and mobile steps may incur a restocking fee.
For full terms and conditions click here.