This 200mm extra heavy duty swivel castors made of a heavy duty pressed steel zinc plated, housing a heavy duty nylon wheel. Carrying loads of 800kgs per castors, overall height 240mm, 4 x M10 Bolt Fixing Plate for easy attachment. This swiveling heavy duty nylon castor wheel runs on ball journal bearings, making heavier loads easier to move. These castors are suitable for a range of heavy duty applications, combine 4 castors to carry over 2.4 tonne castors. 200mm Heavy Duty Swivel Castors White Nylon Wheel 800kg