Schletter SingleFix 20 Twin Kit is used in connection with Solo mounting rail. The universal trapezoidal sheet fastener for steel and aluminium sheet from 0.5mm. The SingleFix-V elements must be able to transmit specifically defined forces so that a reliable structural analysis can be provided for the entire system. When screwing, the SingleFix-V fastening element has to pull the module-bearing rail onto the crown so that pressure loads can be transmitted. In order to achieve this, we recommend to apply the drilling screws slightly inclined from top to bottom. To comply with the technical approval for screws, a minimum sheet thickness of 0.5mm must be maintained with steel sheet metal and with trapezoidal aluminium sheet metal.