The present invention relates to a cable assembly (100) comprising a first cable (20) having a first conductor (22), a second cable (40) having a second conductor (42) and an electrically conducting joining element (60). The joining element (60) comprises a first threaded end section (61) and a second threaded end section (62) opposite of the first end section (61. The first threaded end section (61) is connected to the first conductor (22). The second threaded end section (62) is connected to the second conductor (42). The present invention also relates to a method for joining a first cable (20) having a first conductor (22) and a second cable (40) having a second conductor (42).