If there is no problem to screw the wire on the socket, screw the male plug, for against, is totally ineffective because poorly "designed"! .. Tiny screw that does not tighten thread properly ... It will be better to go through a lean product that ... does not fit its description. Prefer it the product from "Audiotechnics" much easier to implement and no more expensive ..... If you buy one, also plan the welding equipment!