These 160mm extra heavy duty swivel castors made of a heavy duty pressed steel zinc plated, housing a heavy duty nylon wheel. This swiveling castor 160mm wheel runs on ball journal bearings, making heavier loads easier to move. These castors are suitable for a range of heavy duty applications carrying 700kgs each. Combine 4 of these heavy duty nylon castors to carry over 2 tonnes. Overall height 200mm, 4 x M10 Bolt Fixing Plate for easy attachment. Move heavy loads with ease on these nylon caster wheels.