Our Clients
- Load per castor60 kg per castor
- Wheel diameter50 mm
- Overall height72 mm
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Specifications
- Castor type
- Swivel with total lock brake, bolt hole fixing
- Brake
- Foot-operated, locks wheels and swivel head
- Fixing
- Single M10 bolt hole (bolt not included)
- Wheel
- Twin wheel, black polypropylene
- Wheel diameter
- 50 mm
- Tread width
- 17 mm per wheel
- Width across both wheels
- 38 mm
- Bearing type
- Plain
- Load capacity
- 60 kg per castor
- Load capacity, set of 4
- 180 kg (rated on three castors carrying the load)
- Total castor height
- 72 mm
- Swivel radius
- 84 mm
- Housing
- Zinc-plated pressed steel
- Weight
- 0.25 kg
Load check
How we work it out: on a real floor one castor is often carrying little or nothing, so we share the weight across one fewer castor than you fit (with 3 castors, across all 3). Tick the box to add a 30% margin for rough use.
Floors & use
Nylon / polypropylene wheel
- Very easy to push, even when loaded
- Resists water, oil and many chemicals
- Hard-wearing and easy to wipe clean
- Best on smooth concrete and hard floors
- Noisier than rubber or polyurethane
- Hard tread can mark or damage soft and delicate floors
- Rolls poorly over debris and cables
Details & FAQs
If you need a compact castor for tube legs that can be locked completely still, this 50mm twin wheel bolt hole castor does the job with a single press of the foot pedal: the brake locks both the wheels and the swivel head. It fixes with one M10 bolt straight into a tube leg or threaded insert, has two black polypropylene wheels and a zinc-plated pressed steel housing, carries 60kg per castor and stands only 72mm tall. It suits shop display stands, catering and prep tables, light trolleys, office and school furniture and small equipment that must stay put once positioned.
Why it works
Total lock brake – wheels and swivel held together
A standard wheel brake stops the wheel rolling but still lets the castor spin round, so equipment can shuffle sideways when it is leaned on. This castor's foot-operated brake locks the wheels and the swivel head at the same time. Press the grey pedal to lock and lift it to release; you never need to bend down.
Compact bolt hole fixing
The domed swivel head has a single central M10 hole. One bolt goes up through it into the leg or threaded insert, so the castor sits neatly under the leg with no plate sticking out. At 72mm tall it keeps equipment low.
Two small polypropylene wheels
The two 17mm-wide wheels turn independently as the castor swivels, so it changes direction easily with less scrubbing than a single wide wheel; overall width across both wheels is 38mm. Polypropylene is hard wearing, rolls easily and does not absorb water, which suits floors that are regularly mopped.
- Total lock foot brake locks wheels and swivel together
- Single M10 bolt hole fixing, no top plate
- Twin 50mm black polypropylene wheels, plain bearing
- 60kg per castor, 180kg for a set of four
- Compact: 72mm total height, 84mm swivel radius
Where it's used
Shop display stands and fixtures, catering and prep tables, light trolleys, office pedestals, school and home furniture, AV stands and small equipment on round or square tube legs. Best on smooth, hard indoor floors such as vinyl, tiles, sealed concrete and laminate.
Choosing the right option
Check the fixing first: this castor needs an M10 bolt or M10 threaded insert in the leg; for a flat base, a top plate castor is easier to fit. For brakes, most equipment has total lock castors on two corners and plain swivel castors on the other two; the matching unbraked 50mm twin wheel bolt hole castor is the same 72mm height, so a mixed set sits level. For the load, add up the weight of the item and everything on it and divide by three rather than four, because on an uneven floor one castor is often lifted; if the answer is over 60kg, step up to a 75mm castor. Hard polypropylene wheels roll easily but are firmer and noisier than rubber, so choose grey rubber wheels for quiet running or delicate floors. Allow 84mm of swivel clearance around each castor.
Installation, use and care
Fit an M10 bolt of the right length up through the swivel head into the leg or threaded insert and tighten until the head sits flat and firm. Turn the castor so the pedal points outwards where your foot can reach it. Check the fixing after the first few weeks, keep the wheels and brake clear of threads and debris, and wipe clean with a damp cloth. Bring equipment to rest before applying the brake.
Frequently asked questions
What does "total lock" mean?
The foot brake locks both the wheels and the swivel head, so the castor can neither roll nor spin round. Equipment stays put even when it is leaned on or worked at.
What size bolt do I need?
An M10 bolt or M10 threaded insert. The length depends on your leg or insert. Bolts are not supplied.
Are the wheels rubber?
No. Both wheels are solid black polypropylene, which is hard wearing and easy rolling but firmer than rubber.
What is the load capacity?
Each castor is rated to 60kg. A set of four is rated to 180kg, because the load is calculated on three castors to allow for uneven floors.
Ordering and delivery
Sold individually, so order the number of castors you need. Delivery charges are shown at checkout; this product does not have free shipping.
Delivery & returns
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