50mm Light Duty Swivel Castors With Grey Rubber Wheel - Bolt Hole M8 & M10

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Description

50mm Light Duty Swivel Castors With Grey Rubber Wheel — Bolt Hole M8 & M10

50mm Wheel Diameter  |  Plain Bearing  |  M8 or M10 Bolt Hole Fixing  |  Swivel Action  |  UK Stock — Ready to Dispatch


These 50mm light duty swivel castors are compact, reliable bolt hole castors fitted with a grey rubber-treaded polypropylene wheel. Designed for straightforward single-bolt fixing directly through a pre-drilled hole in your equipment frame, they are available in two bolt hole sizes — M8 and M10 — to suit a wide range of standard fittings. The swivel head allows full 360-degree rotation, making them ideal for any application where frequent directional changes and easy repositioning are required.

With a 50kg load capacity per castor and a combined maximum of 150kg across a set of four, these castors are well suited to light duty mobile equipment in retail, commercial, and light industrial environments. The grey rubber tread provides quiet, floor-friendly rolling on smooth and semi-smooth surfaces, reducing noise and protecting floor finishes during everyday use.

Compare All Options — Full Specifications at a Glance
Specification M8 Bolt Hole M10 Bolt Hole
Castor Type Swivel — Bolt Hole Swivel — Bolt Hole
Wheel Diameter 50mm 50mm
Total Castor Height 70mm 70mm
Tread Width 20mm 17mm
Swivel Radius 52mm 52mm
Bolt Hole (Fixing) Size M8 (8mm) M10 (10mm)
Fixing Method Single Bolt Hole Single Bolt Hole
Load Capacity per Castor 50kg 50kg
Max Load — Set of 4 150kg* 150kg*
Wheel Material Polypropylene with Grey Rubber Tread Polypropylene with Grey Rubber Tread
Wheel Colour Grey Grey
Bearing Type Plain Plain
Swivel Action Full 360° Full 360°

* Maximum set-of-4 load is calculated at rated capacity per castor. Always apply an appropriate safety margin and ensure the total loaded equipment weight does not exceed the combined rated capacity of the castors fitted.

Detailed Specifications & Applications by Variant

50mm Light Duty Swivel Castor — Bolt Hole M8

8mm Single Bolt Hole Fixing  |  50kg Capacity  |  Grey Rubber Wheel  |  Plain Bearing
Technical Specifications
Castor Type Swivel — Bolt Hole
Wheel Diameter 50mm
Total Castor Height 70mm
Tread Width 20mm
Swivel Radius 52mm
Bolt Hole (Fixing) Size M8 (8mm)
Fixing Method Single Bolt Hole — direct through-fixing
Load Capacity per Castor 50kg
Max Load — Set of 4 150kg
Wheel Material Polypropylene core with grey rubber tread
Wheel Colour Grey
Bearing Type Plain bearing
Swivel Action Full 360-degree rotation
About

The M8 bolt hole variant is the most widely compatible option for light duty mobile equipment with standard 8mm pre-drilled fixing points. The single bolt hole design allows for a clean, secure installation without the need for a top plate, making it particularly suited to slim-profile frames, shelving units, and display fixtures where space around the fixing point is limited. The 20mm tread width provides a slightly broader contact footprint, contributing to stable, smooth rolling across a variety of floor surfaces.

Features
  • 50mm wheel diameter — compact profile suitable for low-clearance equipment
  • 70mm total castor height — consistent ground clearance for standard light duty frames
  • 20mm tread width — broader contact area for stable rolling
  • 52mm swivel radius — responsive turning in confined spaces
  • M8 (8mm) bolt hole — direct fixing through pre-drilled holes, no plate required
  • 50kg load capacity per castor — reliable support for light duty loads
  • Grey rubber tread on polypropylene core — quiet, floor-friendly operation
  • Plain bearing — low-maintenance, smooth rotation for everyday use
  • Full 360-degree swivel — unrestricted directional movement
Applications
  • Retail Display Fixtures: Ideal for repositioning gondola shelving, display stands, and point-of-sale units in retail environments where M8 fixings are standard.
  • Shop Fitting & Fit-Out: Suited to mobile display cases, clothing rails, and modular shop furniture that require frequent repositioning.
  • Light Duty Trolleys & Carts: Appropriate for picking trolleys, mail room carts, and general-purpose utility trolleys in offices and light commercial settings.
  • Hospitality & Catering Equipment: Suitable for mobile service trolleys, bar carts, and catering equipment in hotels, restaurants, and event venues.
  • Workshop & Storage Units: Useful for mobile tool cabinets, parts bins, and storage units in light workshop environments.
  • Medical & Healthcare Furniture: Compatible with lightweight mobile medical furniture and equipment trolleys where quiet, smooth rolling is required.

50mm Light Duty Swivel Castor — Bolt Hole M10

10mm Single Bolt Hole Fixing  |  50kg Capacity  |  Grey Rubber Wheel  |  Plain Bearing
Technical Specifications
Castor Type Swivel — Bolt Hole
Wheel Diameter 50mm
Total Castor Height 70mm
Tread Width 17mm
Swivel Radius 52mm
Bolt Hole (Fixing) Size M10 (10mm)
Fixing Method Single Bolt Hole — direct through-fixing
Load Capacity per Castor 50kg
Max Load — Set of 4 150kg
Wheel Material Polypropylene core with grey rubber tread
Wheel Colour Grey
Bearing Type Plain bearing
Swivel Action Full 360-degree rotation
About

The M10 bolt hole variant is designed for equipment with larger 10mm fixing points, which are commonly found on heavier-gauge steel frames, industrial trolleys, and commercial furniture where a more robust bolt fixing is specified. Sharing the same 50mm wheel diameter, 70mm total height, and 50kg load capacity as the M8 option, this variant delivers identical performance characteristics with the added security of a larger diameter bolt fixing. The 17mm tread width gives a slightly narrower contact profile, making it well suited to harder, smoother floor surfaces.

Features
  • 50mm wheel diameter — consistent compact profile matching the M8 variant
  • 70mm total castor height — uniform ground clearance across both variants
  • 17mm tread width — narrower profile suited to smooth, hard floor surfaces
  • 52mm swivel radius — identical manoeuvrability to the M8 option
  • M10 (10mm) bolt hole — suits heavier-gauge frames with larger pre-drilled fixings
  • 50kg load capacity per castor — consistent light duty load rating
  • Grey rubber tread on polypropylene core — quiet, floor-protective rolling
  • Plain bearing — simple, maintenance-free rotation
  • Full 360-degree swivel — unrestricted directional movement
Applications
  • Commercial & Industrial Trolleys: Suited to heavier-gauge trolleys and carts with M10 pre-drilled fixing points in warehousing and light industrial environments.
  • Retail & Warehouse Fixtures: Appropriate for mobile racking units, stock room trolleys, and warehouse picking carts where M10 fixings are specified.
  • Hospitality Equipment: Compatible with commercial catering trolleys, linen carts, and housekeeping equipment in hotels and large hospitality venues.
  • Office & Facilities Management: Useful for mobile filing units, AV trolleys, and facilities management equipment with M10 bolt hole frames.
  • Display & Exhibition Equipment: Suitable for exhibition stands, mobile display boards, and event furniture requiring a secure M10 bolt fixing.
  • Educational & Institutional Settings: Appropriate for mobile storage units, library trolleys, and institutional furniture in schools, universities, and public buildings.
Frequently Asked Questions
What is the difference between the M8 and M10 bolt hole options?
The M8 and M10 designations refer to the diameter of the bolt used to fix the castor to your equipment. M8 means the bolt hole accepts an 8mm diameter bolt, while M10 accepts a 10mm diameter bolt. Both variants share the same 50mm wheel diameter, 70mm total height, 50kg load capacity per castor, and 52mm swivel radius. The key difference is the tread width: the M8 option has a 20mm tread width, while the M10 has a 17mm tread width. Choose the variant that matches the pre-drilled fixing hole size on your equipment frame.
What is the maximum load these castors can support?
Each individual castor is rated to a load capacity of 50kg. When fitting a set of four castors, the combined maximum rated load is 150kg — not 200kg — as it is standard practice to calculate the maximum set load at 75% of the total theoretical capacity to account for uneven weight distribution and floor irregularities. Always ensure the total loaded weight of your equipment remains within this rated limit, and apply an appropriate safety margin for dynamic or moving loads.
Are these castors suitable for use on hard floors such as wood, tile, or laminate?
Yes. The grey rubber tread on these castors is designed to roll quietly and smoothly on hard, smooth floor surfaces including hardwood, ceramic tile, vinyl, and laminate. The rubber tread helps to absorb minor floor irregularities and reduces rolling noise, making these castors a practical choice for retail, office, and hospitality environments where floor protection and quiet operation are important. They are not recommended for use on heavily textured, uneven, or outdoor surfaces.
How are bolt hole castors fitted — do I need any special tools or hardware?
Bolt hole castors are fixed directly through a single pre-drilled hole in your equipment frame using a bolt, nut, and washer (not supplied). No top plate is required. Simply pass the bolt through the castor stem and the pre-drilled hole in your frame, then secure with a nut and washer on the opposite side. A standard spanner or socket set is all that is required. Ensure the bolt diameter matches the castor variant you have selected — M8 (8mm) or M10 (10mm) — and that the bolt length is appropriate for the thickness of your equipment frame.
All castors are dispatched from UK stock. Load capacities stated are per individual castor. Always ensure the combined rated capacity of your chosen castors exceeds the maximum loaded weight of your equipment, with an appropriate safety margin applied. Bolt, nut, and washer fixings are not supplied. For guidance on selecting the correct castor for your specific application, please contact us before placing your order.

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