This 160mm diameter medium duty fixed castor, with a solid black rubber wheel, is ideal for a large variety of applications. A fixed caster, has a fixed metal frame that supports the rubber wheel, and does not allow the wheel to swivel, enabling controlled uni-directional movement. Fixed castor wheels are often teamed up with swivel casters on equipment and trolleys for a controlled movement. With a top plate for easy attachment, you can also purchase our M10 Bolts and M10 Nuts, which are ideal for attaching to your castor for your application.