Abstract: The scaffold fitting, which is for securing a scaffold tube to a steel plate or beam comprises a body (10) having a concave arcuate surface (20), a pivotal jaw (12) having a concave arcuate surface (18) arranged to face the arcuate surface (20). The jaw is pivotally mounted adjacent one end to the body and is provided with a clamping bolt (24) at the other end, the bolt being arranged to draw the jaw to the body to permit a scaffold tube to be gripped between said facing arcuate surfaces. A channel member (16) is secured to or integral with the obverse of the body, the channel member having opposed sidewalls arranged substantially perpendicular to the axis of the scaffold tube, the free ends of these sidewalls being remote from the body and having clamping bolts (38, 40) for clampingly engaging the steel plate or beam to one of the sidewalls.