MVA-L NEW MVA-L NEW For use with: Threaded rod: M8/M10 Maximum load - F: 500 N Weight: 39 g Features & Applications Features Universal solution for fastening ventilation ducts directly to ceilings Built-in acoustic insulation piece with through-hole and preassembled U-washer for M8/M10 threaded rods Suitable for fastening in vertical shafts Insulation element cannot drop out during installation Hole size/shape suitable for fastening to ducts using self-drilling screws (4.2, 4.8, 6.3), blind rivets and metric screws/M8 threaded rods Applications For the installation of rectangular air ducts to ceilings For approval or certificate information, please see individual items.