Global Truss 888813 Half Coupler Busbar, Half-Clamp, For attaching 3-phase busbars to traverses, For 48-51 mm tubes, 30 mm Width, Maximum tensile load: 100 kg, Load according to Eurocode 9: 50 kg, Breaking strength: 4.9 kN, TÜV Certified, Tested according to DIN 4113-1: 1980 + A1: 2002 DIN41136-2: 2002 DIN V 4113-3: 1999, Material: Aluminium 6061 T6, Screw plug M8 with wing nut