The Flanged Wing Nut, which is available in five different diameters, differs from the Wing Nut by a larger pedestal allowing a direct bearing on walings. It can be screwed on or loosened using a hexagon wrench, threadbar or hammer. Article No.Bar 脴Plate 脴HeightHexHole 脴1)Weight [mm][mm][mm][mm][mm][kg/pc.] 15 F 2072/9015905327鈮?350.56 15 F 2072/100151005327鈮?350.7 15 F 2072/110151105327鈮?350.8 15 F 2072/130151305327鈮?350.9 20 F 2072/130201306536鈮?401.53Form Work Systems website:http://www.susun-construction.com/form-work-systems/