JMAZ Lighting Plastic O-Clamp Standard

The plastic O-clamp is the light-duty option for small wash fixtures, pinspots and effects hung on a stand crossbar or a scenic pipe. Being plastic, it will not mark a painted or anodised tube, which is why it turns up on architectural and trade-show work more than on truss.

It accepts 1 inch, 1.5 inch and 2 inch tube and carries a 25 kg safe working load. That is a genuine ceiling and not a conservative one; anything heavier belongs on the aluminium O-clamp.