KUPO Nugget Eye Ring Coupler (KCP-863) is a lightweight and low profile professional coupler, constructed from high tensile aluminum extrusion. Working load limit is up to 120kgs (264lbs). Nugget Coupler is designed to fit tubes with diameters between 32mm-38mm (1.25"~1.5"). For quick and easy interconnection for truss, pipes or bars. It has double level's counter sunk for M10 or 3/8" hex head. Unique windows for safety wire access through. Hook struct of top opening section limits the open pace that offers assistance to rig. A captive on top of thread bolt to avoid wing nut falling off the clamp. Equipped with M10 dia. 25mm eye ring for multipurpose use with chains, wires and ropes. TUV certified, and ideal for stage, event and studio.