Open Grummet This fitting was designed by us to overcome the problem of flying wires becoming trapped behind grummets on touring sets. The wire is simply twisted at right angles and pulled free. The fitting uses our standard plate size (68 x 45mm) and should be used in the intermediate positions on flown pieces with the stronger Two Part or Opera House Grummets being used at the head of the flat. The finish is black powder coated. Fixings needed: 4 off 5 mm csk machine screws and T-Nuts.