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Need help? Call Us 01744 520 110 or email sales@industrialsuppliesco.co.uk
Description
A cast collar to dress 12mm round bar. A compact cast knuckle: a wider rounded band at the centre, 34mm across, with a slimmer 27mm rounded band above and below it. It slides over the bar to add a turned detail to railings, gates and balustrades. The price shown is for one collar, with a minimum order of 15.

Why choose this collar
Sized for 12mm bar. The 13mm round hole is made for 12mm round bar, so it slides on and can be set exactly where you want it.
A neat detail for little cost. At 34mm across and 42mm tall, it adds shape to a plain bar without bulk.
Ready to paint. It comes in a raw cast finish and takes the same primer and paint as the rest of the ironwork.
Where it is used
Railings, garden gates, Juliet balconies, staircase balustrades and restoration work in 12mm round bar. Set them at one height to form a level band across the panel.
Specifications
| What you get | One collar, minimum order 15 |
|---|---|
| Material | Cast metal |
| Finish | Raw, unpainted |
| Height | 42mm |
| Widest point | 34mm |
| Top band | 27mm |
| Hole | 13mm round |
| Suits bar | 12mm round |
| Weight | About 0.13 kg each |
| Fixing | Slide on, then tack weld or bond |
How many do you need?
Count one collar per bar for a single line, or more if you want a stacked band. A metre of railing at 115mm centres has about 9 bars.
Is this the right collar?
| You want | Choose |
|---|---|
| This small round knuckle collar, 34 x 42mm | This collar |
| A taller round knuckle on 12mm round bar | Round knuckle collar, 37 x 63mm |
| A leaf collar on 12mm round bar | Tulip leaf collar, 34 x 65mm |
| The same small knuckle for 12mm square bar | Small knuckle collar, square hole |
| Every collar shape and size | All collars |
Fitting and care
Thread the collars onto the bars before the bars are fixed at both ends. Mark a level line across the bars, slide each collar to the line, then hold it with a small tack weld or a metal adhesive.
Wire brush and degrease, then prime with a metal primer and paint to match the rest of the ironwork. Use a zinc-rich primer outdoors.
Frequently asked questions
Is the price for one collar?
Yes, one collar, with a minimum order of 15. For a larger job, call us for a quantity price.
Will it fit 12mm square bar?
No. Its round hole is made for 12mm round bar, so square bar will either not pass through or will sit loose. Check your bar before ordering.
Can I fit it to bars that are already welded in?
No. It is a solid casting, so it has to go on before the bar is fixed at both ends.
Can it be galvanised?
We do not recommend hot-dip galvanising for this part, as cast parts can blister or crack in the zinc bath. Prime and paint it, or use a zinc-rich primer before your top coat.
The size looks different from another listing?
Some catalogues list this collar as 42 x 34mm. The figures here are from the dimension sheet.
Ordering and delivery
Order 15 or more online, with Express UK Delivery to your site and same-day dispatch on orders before 2pm, Monday to Friday. For a larger job, call 01744 520 110 or email sales@industrialsuppliesco.co.uk and we will confirm availability and delivery before you order.
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Logos are for illustrative purposes only and do not imply official endorsement
About Us
Suppliers to Ministry of Defence, NATO, US Airforce and Most UK Councils, Schools, Universities, Hospitals & various Government departments
Payment & Security
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Minimum order 15 pcs







