Heavy Duty Leveling Footmaster Castors are unique in their function allowing movement on a swivel castor and positioning on an anti vibration rubber pad by a Handwheel adjustment. With a die cast aluminum body these sturdy multifunctional castors can take a load of 800kg when stationery on the rubber pad and 400kg when moving on the castor wheel. Attachment to machinery and equipment is by an M16 threaded stem. Footmaster Castor 120-132mm 400kg Load Stem Fitting with Handwheel Adjustment