The CELO spring toggle is suitable for fixings in cavity ceilings or walls, and boards like gypsum boards or chipboards. Press together the spring toggle and push it through the drill hole. In the free space behind the board the spring toggle folds back. The CELO spring toggle can be installed in different board thicknesses due to the long threaded rod. The CELO spring toggle is available in different types: 1) FK-S with washer and hexagon nut, 2) FK-HS with hook, washerand hexagon nut, 3) FK-R with knurled nut, yellow galvanized, 4) FK-UR with knurled nut and washer yellow galvanized.