EUROLITE TH-250 QUICK-LOCK Coupler silver is a PRO mounting hook for installing projectors and lighting effects on truss systems. It accommodates tube diameters from 45 to 50 cm and uses a QUICK-LOCK mechanism with a large wing bolt. The aluminium-cast coupler has an M10 mounting screw and silver finish. Its maximum working load limit is 250 kg, while the BGV C1 maximum load is 125 kg. Dimensions are 19 cm long, 3 cm wide and 10 cm deep; weight is 0.51 kg.