This 50mm aluminium half spigot clamp is perfect for linking truss and rigging truss structures. High quality wrap around clamp, made from aluminium with a polished finish. This half spigot clamp has a max load rating of 500kg. Commonly used to link short lengths of 50mm pole truss to upright 290 box or tri truss to hang lights and movers. Suitable for use with Global truss and other brands of similar design with 50mm main tube. This spigot clamp has Australian engineering certification(Independently tested, ISO17025 Laboratory tested), insuring peace of mind when working with entertainment venues and the general public.