alternative to Furutech FT-SWS R SCHUKO socket, for Europe


I live in Europe, Denmark and are looking for affordable alternatives to the Furutech: FT-SWS R power socket.
I need a SCHUKO type socket with screws to secure the wire. Just want something that can take a 6mm2 cable and secure it properly and are better than the standard stuff, when I say better I mean construction wise, if it sounds better then it’s a bonus (:

*** I am using 6 mm2 cable ***
martin-andersen