(patented) Galvanized fastening kit for 3-wing MECHANICA (1146) hinges on flat profiles, with: 2 steel counterplates 20×6 mm, 6 galvanized special screws for counterplate fastening M8x25, 3 galvanized socket head cap screws M4x16 for cover fastening, 1 galvanized grub screw M6x8 for cam bushing fastening.