The invention relates to an electric plug-connector socket comprising a cylindrical socket sleeve, wherein the socket sleeve is designed with an accommodating space, into which is pushed a cylindrical lamella cage with a multiplicity of parallel contact lamellae, wherein the lamella cage has a first and second end-side, encircling collar crosspiece, and the contact lamellae run therebetween, wherein the lamella cage, on both collar crosspieces, has preferably window-like apertures, and wherein a stamping method is used to introduce, into the lateral surface of the socket sleeve, a plurality of convexities which extend into the window-like apertures such that a preferably force-fitting connection is formed between the lamella cage and the socket sleeve.