Braked Bolt Hole Castors
50mm Braked Swivel Bolt Hole Castor – Grey Rubber Tyre, Polypropylene Centre, Metal Thread Guards, M10 Fixing, 40kg Load
In stock
Not sure this is the right castor?
Tell us your load, floor and fixing — a castor specialist will confirm the right fit before you order.
A compact 50mm swivel bolt hole castor with a braked wheel, grey rubber tyre and metal thread guards, rated to 40kg.
The wheel brake locks the castor so equipment stays in position, and the swivel head gives easy directional control. The grey rubber tyre sits on a polypropylene centre running on a plain bore, with metal thread guards fitted. It fixes through a single M10 bolt hole, and the pressed steel bracket is zinc plated for strength and corrosion resistance.
Key Features
- Swivel action with wheel brake for secure parking
- Grey rubber tyre on a polypropylene centre
- Metal thread guards fitted
- Single M10 bolt hole fixing
- Pressed steel, zinc-plated bracket
- 40kg load capacity
Specifications
- Type: Swivel with Wheel Brake
- Wheel Diameter (mm): 50
- Load Capacity: 40 kg
- Wheel Composition: Rubber Tyre/Polypropylene Centre
- Bracket Material: Pressed Steel Zinc Plated
- Bolthole Diameter (mm): 10mm
- Tyre Colour: Grey
- Bearing Type: Plain Bore
- Tread Width: 15 mm
- Overall Height: 70 mm
- Fixing Bolt Size: 10mm
- Bolt Hole Reducer Option: No
Pick the right tyre for your floor
The tyre matters as much as the load rating. Shop by wheel material:
PolyurethaneQuiet and floor-friendly. Best for smooth indoor floors, retail and labs.Shop polyurethane →
RubberSoft, cushioned ride. Ideal for uneven or outdoor surfaces.Shop rubber →
NylonHard and low rolling resistance. Suits heavy loads on hard, clean floors.Shop nylon →
Cast ironVery hard-wearing for heavy loads on rough or hot factory floors.Shop cast iron →
Castor questions, answered
How much load capacity do I need per castor?
Add up the weight of the trolley plus its heaviest load, then divide by three rather than four. On uneven floors one castor is often off the ground, so this gives you a safe margin.
How do I measure a top plate castor?
Measure the top plate (length × width), the distance between the bolt hole centres, and the overall height from the floor to the top of the plate. Match these to the sizes in the listing so the new castor fits your existing holes and keeps the trolley level.
Swivel, braked or fixed — which should I choose?
Swivel castors turn in any direction, fixed castors only roll straight, and braked castors can be locked in place. Many trolleys use two fixed castors at one end with two swivel or braked swivel castors at the other for easy steering.
Can I order in bulk?
Yes. For larger quantities or a fleet of trolleys, send us the items and quantities through the bulk quote form and we'll come back to you with a quote.