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Square Expanding Tube Adaptor Internal Dia. 20-22mmSquare Expanding Tube Adaptor Internal Dia. 20-22mm
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Square Expanding Tube Adaptor Internal Dia. 20-22mm


Square Expanding Tube Adaptor to fit square tubing with internal diameter from 20-22mm is specifically designed to allow castors to be fitted to hollow tube. Can be us... Read More

£3.28 (excl. VAT) Incl. VAT: £3.94
1+ £3.28 (excl. VAT) £3.94 20 £2.95 (excl. VAT) £3.54 50 £2.70 (excl. VAT) £3.24 100 £2.53 (excl. VAT) £3.04

With this product, you earn 4 loyalty point(s). 4 points = £0.20.


Square Expanding Tube Adaptor to fit square tubing with internal diameter from 20-22mm is specifically designed to allow castors to be fitted to hollow tube. Can be used with our bolt hole castors 310 Series and 4000 Series. Combining a tubular adaptor and a castor will increase the overall castor height by 3mm.

Technical Details

Colour Colour No
Finish No
Inside Diameter 20-22
Thread Material Thread Material No

Delivery & Returns


Delivery Charges


We have teamed up with FedEx and DPD Interlink to deliver our products nationally and worldwide. Our trackable consignments, and signed for service ensures the order gets to you in the required time, hassle free.

As our products can be bulky we have a variety of delivery charges based upon the weight of your overall order. You will be shown delivery options at the checkout. For a more detailed view of our delivery charges please visit our Delivery and Returns page

You can order online quickly and easily for both UK and EU destination, and your delivery charge will be shown to you at checkout. If your order exceeds our weight for online orders you will be asked to contact us directly to get a pallet delivery quote. 


ServiceWeight - (kg's)Cost £'s

Collection In Person



Sack Trucks Trolleys and Steps



2 Day - Express Pack Light

Up to 1kg


2 Day Express Pack Medium

Up to 4kg


Next Working Day Service

Up to 25kg


2 Day - Standard Service

4kg to 25kg


Next Day - Pre 12pm 

Up to 25kg


Next Day - Pre 10.30am 

Up to 25kg


Saturday - Delivery  Service

Up to 25kg


Highlands and Islands

Up to 25kg

From £13.00 - £40.00

Northern & Southern Ireland

Up to 50kg

£13.00 - £39.00

Inside EU

Up to 60kg

From €14 - €68

Outside EU

Up to 60kg

Contact us for a Quote



Returns and Refunds

We have a no quibble returns and refund policy. You have 7 days to return any item for a full refund or exchange, provided it is in its original, unused, saleable condition and repackaged in original packaging.

To return goods simply download this Returns form

Returns charges are not covered by the Company, unless the goods are faulty. If the goods are faulty please call our Customer Services on 0116 2764987 or 00 44 116 2764987

For Returns of Sack Trucks, Trolleys and Mobile Steps please refer to our detailed Terms and Conditions


Got a Question to Ask?

Use this form to submit your question. Question will be displayed after moderation

Question Written by: David Watson . March 19th 2020
I need to know what the Bolt OD is for the S20 fitting . I need a fitting for 20mm box for a 12mm Centre Bolt
Answer Written by: Ross Handling
Our expander fittings are mounted with a M10 bolt. For castor that have an M12 bolt hole we would also fit a M12-10mm reducing collar. These are not listed on our website but could be offered as an additional item when calling our sales team
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Question Written by: Jim . April 9th 2020
Hello Team, Looks like my trolley legs are 19 mm square I/D do you have any expanding tube adaptors that would suit
Answer Written by: Ross Handling
Smallest we offer is 20mm i'm afraid.
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Measuring Advice

We have a range of quick reference guides on how to measure and choose the correct product.  Take a look at our Measuring guide page for more information and advice.

Alternatively if you would like to speak to our friendly team, please do call us on 0116 2764987